S1093: Management systems for beef cattle reared in subtropical and tropical environments

(Multistate Research Project)

Status: Active

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SAES-422 Reports

Annual/Termination Reports:

[12/04/2023] [11/26/2024] [11/12/2025]

Date of Annual Report: 12/04/2023

Report Information

Annual Meeting Dates: 11/07/2023 - 11/08/2023
Period the Report Covers: 11/07/2023 - 12/04/2023

Participants

Reinaldo Cooke (Texas A&M University; chair)
Kelsey Harvey (Mississippi State University; secretary)
Ky Pohler (Texas A&M University)
Joao Vendramini (University of Florida)
Barbara Reis (Mississippi State University)
Marcelo Vedovatto (Louisiana State University)
Rodolfo Cardoso (Texas A&M University)
Rodrigo Marques (Montana State University)
Vinicius Gouvea (Texas A&M University)
Robert Godfrey (USDA-NIFA Representative)
Pedro Fontes (University of Georgia)
Juliana Ranches (Oregon State University)
Cliff Lamb (virtual presence; Texas A&M University – Project Advisor)

Brief Summary of Minutes

Minutes Attachment:

S1903 Meeting Minutes 2023.pdf

Accomplishments

This is a new multi-state committee, so have no accomplishments to report.

Publications

Impact Statements

Date of Annual Report: 11/26/2024

Report Information

Annual Meeting Dates: 10/31/2024 - 11/01/2024
Period the Report Covers: 11/01/2023 - 10/31/2024

Participants

Brief Summary of Minutes

Accomplishments

Objective 1. Identify and fully comprehend the biological functions associated with growth, health, and reproduction in Bos indicus-influenced cattle reared in tropical and subtropical environments   Florida <ul> <li>Effects of breed on preferential intake of hydroxychloride and sulfate sources of trace minerals in growing beef heifers. Conclusions: Nelore heifers had greater preferential intake for mineral and protein supplements containing hydroxychloride vs. sulfate sources compared to Angus × Nelore heifers. Hydroxychloride sources encouraged voluntary intake and reduced variation in supplement consumption compared to SUL sources of the same metals.</li> <li>Replacing sulfate with hydroxychloride sources of trace minerals to modulate the growth performance and physiology of beef heifers during periods of feed restriction and high starch intake. Conclusions: Nelore heifers offered hydroxychloride sources of Cu, Mn, and Zn exhibited greater plasma concentrations of IGF-1 and a temporary boost in ADG during nutrient surplus compared to those receiving sulfate sources. While hydroxychloride supplementation reduced the acute phase response early in nutrient restriction, it did not improve growth performance or other physiological indicators during nutrient restriction and starch challenges.</li> <li>Breed and trace mineral source modulate the growth and physiology of beef heifers during periods of nutrient restriction and grazing forage at early vegetative stage. Conclusions: Breed modulated the physiology and growth of beef heifers during nutrient restriction, but did not impact growth and incidence of diarrhea during periods of grazing forage at early vegetative stage. Regardless of breed, replacing sulfate with hydroxychloride sources of Cu, Mn, and Zn led to minor positive effects on serum indicators, enhanced growth during nutrient restriction, and reduced diarrhea during grazing of early vegetative forage.</li> <li>A 12-year summary of the effects of estrous synchronization and body weight at breeding on reproductive success of Bos indicus-influenced beef heifers grazing warm-season grasses. Conclusions: Bos indicus-influenced beef heifers need to achieve ≥65% of mature BW at the start of the breeding season to optimize reproduction, whereas estrous synchronization protocols enhanced puberty attainment (regardless of BW) and early calving distribution when heifers were <65% of mature BW at the start of the breeding season.</li> <li>Use of sunn hemp as forage for beef cattle. Conclusions: The presence of pyrrolizidine alkaloids in sunn hemp may be the potential cause of decreased early-weaned calves forage intake and animal performance, thus feeding sunn hemp to early-weaned calves should be avoided.</li> </ul>   Texas <ul> <li>Characterizing pregnancy losses in lactating Holstein cows receiving a fixed-timed artificial insemination protocol. Conclusions: This experiment provides novel information about pregnancy losses in Holstein cows reared in tropical conditions, which totaled 28.5% from day 31 of gestation to calving and the majority resulted from fetal mortality after day 62 of gestation (17.8%). Pregnancy losses were mostly increased in multiparous compared with primiparous cows. Level of systemic inflammation during early gestation, based on serum haptoglobin on day 24 after FTAI, impaired pregnancy success on day 31 after FTAI and increased pregnancy losses resultant from late embryonic + early fetal mortalities. This experiment also suggests serum PAGs concentrations on day 31 of gestation as predictor of pregnancy loss during the initial 4 months of gestation, but not for losses occurring after day 120 of gestation.</li> <li>Pregnancy losses in Bos indicus-influenced beef and dairy recipients assigned to a fixed-time embryo transfer protocol. Conclusions: Most pregnancy losses occurred from early embryonic mortality in both scenarios, although late embryonic + fetal mortalities were elevated and should not be associated with reproductive diseases. Pregnancy losses were directly impacted by body condition score and management systems of beef recipient, and by season of the FTET event and indicus influence of donors and recipients in the dairy herd. Sire used for embryo production also influenced pregnancy losses in both systems, including a beef sire that yielded low embryonic + fetal losses, and a dairy sire that alleviated early embryonic losses during the warm season.</li> <li>Characterizing pregnancy losses in Bos indicus beef females receiving a fixed-timed artificial insemination protocol. Conclusions: This experiment provides novel information about pregnancy losses after day 30 of gestation in indicus cattle, with most losses occurring as fetal mortality and not affected by systemic inflammation during early gestation. Pregnancy losses were nearly doubled in precocious and conventional heifers compared with parous cows, demonstrating the relevance of this reproductive failure to B. indicus replacement heifers.</li> </ul>     Mississippi <ul> <li>Impact of shade and chromium supplementation on performance, carcass characteristics and oxidative stress of finishing steers in hot environmental conditions. Conclusions: Ongoing</li> <li>Effects of sodium during late gestation of beef cows on performance, response to vaccination, acid-base balance, plasma metabolome, liver and muscle transcriptome of the offspring. Conclusions: Ongoing</li> <li>Effects of implant administration at birth and trace mineral injection at weaning on growth, inflammatory and immune responses of beef calves and their residual impact during the preconditioning phase. Conclusions: Ongoing</li> <li>Impacts of trace mineral source and ancillary drench on steer performance during a 60-day backgrounding phase. Conclusions: While supplementing cattle with AAC or INR results in similar animal performance and clinical disease, AAC and APF reduces stress and acute phase protein responses in high-risk receiving cattle.</li> <li>Integrated blood transcriptome and multi-tissue trace mineral analyses of healthy stocker cattle fed complexed or inorganic trace mineral supplement. Conclusions: This study identified gene expression differences in high-risk cattle fed inorganic or amino acid complexed mineral supplements, revealing adaptive immune and metabolic mechanisms that may be improved by organic supplementation. These results suggest that tailored mineral supplementation may improve cattle immunity and mineral absorption.</li> <li>Trace mineral supplementation strategies for beef cattle during feedlot receiving: A systematic review and meta-analysis. Conclusions: On going.</li> </ul>   Louisiana <ul> <li>Effects of temperament on metabolic and hormonal profile, performance and puberty attainment of grazing Brangus heifers. Conclusions: Ongoing</li> </ul>   Nebraska <ul> <li>Characterizing TPRV1 variants in Bos indicus-influenced and Bos taurus cattle. Conclusions: Ongoing</li> <li>Effects of bloom time and lean color on beef grading camera measures. Conclusions: Increasing bloom time for up to two hours post-ribbing reduces marbling score outputs by beef grading cameras. Consideration should be given to the placement of camera grading equipment with respect to length of time between ribbing and grading and the length of time carcasses are held for regrading. Chilling time may affect visual properties of lean and/or intramuscular fat, and thus, grading camera outputs. Future research is needed to determine if cattle with inherently dark lean color receive lower marbling scores compared to cattle with more red lean color</li> </ul>     Objective 2. Develop management practices tailored to Bos indicus-influenced cattle reared in subtropical and tropical regions of the US   Florida <ul> <li>Bakery waste supplementation to late gestating Bos indicus-influenced beef cows successfully impacted offspring postnatal performance. Conclusions: Supplemental fat concentration fed to late-gestating beef cows had variable effects on calf performance. Low-fat bakery waste led to greatest calf preweaning growth, whereas high-fat bakery waste enhanced maternal reproduction and had minor benefits to calf humoral immune function.</li> <li>Removing maternal heat stress abatement during gestation modulated postnatal physiology and improved performance of Bos indicus-influenced beef offspring. Conclusions: Removing maternal access to artificial shade: (1) increased prepartum intravaginal temperature and plasma concentrations of cortisol but reduced prepartum BCS and plasma concentrations of IGF-1 in grazing Bos indicus-influenced beef heifers; and (2) increased post-weaning BW gain and had positive effects on humoral immune response of their offspring.</li> <li>Maternal prepartum supplementation of protein and energy and body condition score modulated the performance of Bos indicus-influenced cow-calf pairs. Conclusions: Precalving supplementation improved reproduction of cows with below optimal BCS and weaning weight of calves born from cows with BCS above optimal, whereas calving BCS was the major factor affecting postpartum BCS change and cow reproductive performance.</li> <li>Maternal pre- and postpartum supplementation of a Bacillus-based DFM enhanced cow and calf performance. Conclusions: Maternal supplementation of a Bacillus-based DFM increased prepartum BCS gain and postpartum plasma glucose concentration of heifers and led to positive carryover effects on post-weaning BW gain and humoral immune response in their offspring.</li> <li>Stocking method effects on Bos indicus influenced cows grazing subtropical rangelands. Conclusions: Grazing method did not affect forage characteristics and animal performance of mature cows grazing rangelands from January to April in Florida.</li> <li>Stair-step supplementation of early-weaned calves grazing annual ryegrass. Conclusions: The stair-step supplementation procedure did not impact forage characteristics and animal performance of early-weaned calves grazing annual ryegrass.</li> </ul>   Texas <ul> <li>Supplementing yeast culture to beef heifers consuming a forage-based diet: effects on growth performance and ruminal fermentation responses. Conclusions: Supplementing YC at 1.5 or 3.0 g/100 kg of BW linearly enhanced utilization of dietary nutrients and rumen VFA production, leading to improved ADG and G:F of beef heifers consuming a forage-based diet.</li> <li>Supplementing a Bacillus-based probiotic to high-risk stocker cattle. Conclusions: Supplementation with a probiotic based on subtilis and B. licheniformis to high-risk stocker cattle did not alleviate incidence of BRD signs nor improved ADG, but decreased acute-phase protein response, reduced steer mortality + removal, and increased pasture-based productivity during a 90-day grazing period.</li> <li>Effects of moderate exercise regimen on development and puberty attainment of Bos indicus-influenced beef heifers reared in drylots at a high stocking density. </li> </ul> Conclusions: Rearing Bos indicus-influenced beef heifers in drylots with high stocking density has detrimental effects to their puberty attainment, and the moderate exercise regimen partially alleviated this negative outcome. <ul> <li>Supplementing narasin or monensin to control coccidiosis in naturally infected calves. Conclusions: Both ionophores were similarly effective in controlling coccidiosis upon completion of the 42-day study, although the anticoccidial effects of monensin were noted earlier in the experiment. Nonetheless, these results corroborate narasin as an efficient anticoccidial ionophore for naturally infected calves.</li> <li>Administering the maternal appeasing substance (mBAS) before slaughter to improve carcass characteristics of finishing cattle. </li> </ul> Conclusions: mBAS administration to finishing cattle using oilers during the last 7 days on feed alleviated the adrenocortical stress response elicited by the process of slaughter, which likely resulted in increased carcass dressing <ul> <li>An updated meta-analysis of the anti-methanogenic effects of monensin in beef cattle. Conclusions: this study provides novel insights and further corroborates monensin as CH4 mitigation strategy in beef cattle operations. The most effective responses were observed during the first 79 days of monensin supplementation, and when monensin was included between 32 to 44 mg/kg of diet, was added to high-forage diets, and added to diets fed ad libitum.</li> </ul>   Mississippi <ul> <li>Impact of nutritional management on beef heifers’ puberty attainment and physiology. Conclusions: Ongoing.</li> <li>Development of a system for assessing maternal behavior in post-partum crossbred cows and heifers. Conclusions: The scoring systems established are effective in quantifying maternal behavior at calving in beef cows. However, these scoring systems should be refined to account for noted variability.</li> <li>Impact of maternal behavior at calving on productivity in beef cows. Conclusions: Multiparous dams with a low maternal aggression score at calving have increased calf mortality and subsequent, decreased weaning rate. Additional research is warranted to address the relationships among maternal behavior scores at calving and offspring productivity.</li> <li>Feeding behavior of high-risk steers newly received for backgrounding. Conclusions: These results quantify the acclimation period of steers to a new environment and characterizes the learning and development of novel modes of eating. These results inform the development of behavioral expectations for newly received high-risk calves that can be used to monitor cattle health, understand cattle perception, and promote cattle welfare.</li> <li>Describing the consumption of a granular mineral supplement containing chlortetracycline by gestating beef cattle on pasture. Conclusions: As cow age increases, total CTC-medicated mineral consuming days and total CTC-medicated mineral consumption decrease. During this study, 7.45% (7/94) cows received an average CTC dose between 1.05-1.15 mg/kg/day through voluntary consumption of CTC-medicated mineral. Feeding a CTC-medicated mineral supplement in a free-choice manner did not ensure all cows consumed the labelled CTC dose of 1.1mg/kg/day.</li> <li>Impact of postweaning stair-step nutritional regimen in beef heifers on reproductive development and productivity as primiparous cows. Conclusions: On going.</li> <li>Impact of fecal egg count during gestation on productive outcomes in beef cattle. Conclusions: On going.</li> </ul>   Louisiana <ul> <li>Impact of a trace mineral injection at weaning on growth, behavior, and inflammatory, antioxidant, and immune responses of beef calves. Conclusions: In conclusion, ITM application at weaning improved Cu and Se status, enhanced antioxidant and immune responses, and reduced stress and inflammation in calves, though it did not affect growth.</li> <li>Effects of injectable trace minerals (Cu, Zn, Se, and Mn) and vitamins (A and E) on reproduction and antioxidant responses of Bos indicus beef females synchronized to fixed-time AI. Conclusions: The administration of TMVI at the beginning of a fixed-timed AI protocol reduced the inflammatory responses and improved the antioxidant response and reproduction parameters, mainly in females with low BCS.</li> <li>Effects of an appeasing substance application at weaning on growth, stress, behavior, and response to vaccination of Bos indicus calves. Conclusions: The BAS administration improved BW, reduced temperament and serum cortisol concentration, and improved behavior and response to vaccination.</li> <li>Appeasing substance administration at feedlot entry impacted temperament, pen behavior, immunocompetence, and meat quality of beef heifers. Conclusions: BAS administration at feedlot entry increased growth, reduced stress, and inflammation, and improved humoral immune responses, behavior, and meat quality of heifers.</li> <li>Effect of provision of artificial shade and chromium supplementation during mid and late gestation to fall-calving beef cows under heat stress conditions: performance, immunocompetence and physiological responses of cow-calf pairs. Conclusions: On going</li> </ul>

Publications

Refereed Journal Articles <ol> <li>Brauner, C. C., V. S. Izquierdo, J. M. B. Vendramini, and P. Moriel. 2024. A 12-year summary of the effects of estrous synchronization and body weight at breeding on reproductive success of Bos indicus-influenced beef heifers grazing warm-season grasses. Applied Anim. Sci. Accepted Oct 12, 2024.</li> <li>Izquierdo, V. S., B. S. Menezes, M. G. Lopes, E. G. Malaguez, F. Lopes, F. M. Pereira, C. C. Brauner, P. Moriel, M. N. Corrêa, and E. Schmitt. 2024. Rumen-protected methionine modulates body temperature and reduces the incidence of heat stress temperatures during hottest hours of the day of grazing heat-stressed Bos indicus beef cows. Anim. Sci. J. 95(1):e13980. <a href="https://doi.org/10.1111/asj.13980">doi:10.1111/asj.13980</a></li> <li>Izquierdo, V. S., B. I. Cappellozza, J. V. L. Silva, G. C. M. Santos, A. Miranda, J. H. J. Bittar, A. Pickett, S. Mackey, R. F. Cooke, J. M. B. Vendramini, and P. Moriel. 2024. Maternal pre- and postpartum supplementation of a Bacillus-based DFM enhanced cow-calf performance. J. Anim. Sci. 102:skae110. <a href="https://doi.org/10.1093/jas/skae110">doi:10.1093/jas/skae110</a></li> <li>Moriel, P., M. Vedovatto, V. Izquierdo, E. A. Palmer, and J. M. B. Vendramini. 2024. Maternal precalving supplementation of protein/energy and body condition score modulate the performance of Bos indicus-influenced cow-calf pairs. Anim. Reprod. Sci. 262:107433. <a href="https://doi.org/10.1016/j.anireprosci.2024.107433">doi:10.1016/j.anireprosci.2024.107433</a></li> <li>Sousa, L. M., W. L. Souza, K. A. Oliveira, I. A. Cidrini, P. Moriel, H. C. R. Nogueira, I. M. Ferreira, G. D. Ramirez-Zamudio, I. M. Oliveira, L. F. Prados, F. D. Resende, and G. R. Siqueira. 2024. Herbage allowance from mid to late gestation modulates beef cows prepartum performance and preweaning growth of their female offspring. Animals. 14(1):163. <a href="https://doi.org/10.3390/ani14010163">doi:10.3390/ani14010163</a></li> <li>Souza, I. R. T., P. Moriel, M. H. Barbosa, M. E. Rezende, F. Biazotto, G. V. A. R. Camargo, K. V. Z. Augusto, M. A. F. Porcionato, D. B. Araujo, and J. L. M. Vasconcelos. 2023. Effects of breed on preferential intake of hydroxychloride and sulfate sources of trace minerals in growing beef heifers. Trans. Anim. Sci. 7(1):txad130. <a href="https://doi.org/10.1093/tas/txad130">doi:10.1093/tas/txad130</a></li> <li>Pedro, A. E., G. L. Pereira, J. A. Torrecilhas, R. N. S. Torres, G. D. Ramirez-Zamudio, W. A. Baldassini, L. A. Chardulo, R. A. Curi, G. H. Russo, J. A. Napolitano, G. L. B. Tinoco, T. B. Mariano, J. L. Caixeta, and P. Moriel. 2023. Early weaning possibly increases the activity of lipogenic and adipogenic pathways in intramuscular adipose tissue of Nellore calves. Metabolites. 13(9):1028. <a href="https://doi.org/10.3390/metabo13091028">doi:10.3390/metabo13091028</a></li> <li>Izquierdo, V. S., J. V. L. Silva, J. Ranches, G. C. M. Santos, J. A. Carroll, N. C. Burdick Sanchez, J. H. J. Bittar, J. M. B. Vendramini, and P. Moriel. 2023. Removing maternal heat stress abatement during gestation modulated postnatal physiology and improved performance of Bos indicus-influenced beef offspring. Anim. Sci. 101:skad250. <a href="https://doi.org/10.1093/jas/skad250">doi:10.1093/jas/skad250</a></li> <li>Izquierdo, V. S., J. V. L. Silva, E. Palmer, J. Ranches, J. H. J. Bittar, G. C. M. Santos, A. Pickett, R. F. Cooke, J. M. B. Vendramini, and P. Moriel. 2023. Bakery waste supplementation to late gestating Bos indicus-influenced beef cows successfully impacted offspring postnatal performance. J. Anim. Sci. 101:skad244. <a href="https://doi.org/10.1093/jas/skad244">doi:10.1093/jas/skad244</a></li> <li>Sousa, L. F., E. F. Brito, A. T. Ramos, R. E. Mora-Luna, P. Moriel, J. M. B. Vendramini, and J. F. Ferreira. 2023. Spatial variability of the occurrence of lesion on cattle carcasses in association with pre-slaughter factors in the forest-savannah transition zone. R. Bras. Zootec. 52:e20220014. <a href="http://dx.doi.org/10.37496/rbz5220220014">doi:0.37496/rbz5220220014</a></li> <li>Oliveira, H. M. R., J. M. B. Vendramini, J. Garzon, H. M. Silva, I. M. Ferreira, E. Palmer, and P. Moriel. 2023. Effects of frequency of concentrate supplementation on performance of early-weaned beef calves consuming annual ryegrass. Applied Anim. Sci. 39:33-39. <a href="https://doi.org/10.15232/aas.2022-02367">doi:10.15232/aas.2022-02367</a> *Editor’s choice April 2023.</li> <li>Amorín, R., L. Liu, P. Moriel, N. DiLorenzo, P. A. Lancaster, and F. Peñagaricano. 2023. Maternal diet induces persistent DNA methylation changes in the muscle of beef calves. Scientific Reports. 13:1587. <a href="https://doi.org/10.1038/s41598-023-28896-3">doi:10.1038/s41598-023-28896-3</a></li> <li>Garzon, J., J.M.B. Vendramini, M.L. Silveira, J.C.B. Dubeux Jr., L.E. Sollenberger, H.L. Liao, H.M.S. da Silva, V.C. Gomes, and H.M.R. Oliveira. 2024. Aeschynomene overseeding and N fertilization effects in bahiagrass litter decomposition. Agron. J. 116:1455-1465 https://doi.org/10.1002/agj2.21561</li> <li>Vinning, P., P.A. Lancaster, N. DiLorenzo, G.C. Lamb, and J.M.B. Vendramini. 2024. Similar feed intake levels yield no differences in energy utilization between beef heifers identified as low (efficient) and high (inefficient) residual feed intake. Anim. Prod. Sci. https://doi.org/10.1071/AN23269</li> <li>Silveira, M.L., P.J.R. da Cruz, J.M.B. Vendramini, E. Boughton, R. Bracho, and A.S. Cardoso. 2024. Opportunities to increase soil carbon sequestration in grazing lands in the southern USA. Grassland Research 3:69-78 <a href="https://doi.org/10.1002/glr2.12074">https://doi.org/10.1002/glr2.12074</a>.</li> <li>Munhoz, S. K., R. F. Cooke, A. K. Munhoz, P. Prado, M. H. C. Pereira, and J. L. M. Vasconcelos. 2023. Pregnancy losses in Bos indicus-influenced beef and dairy recipients assigned to a fixed-time embryo transfer protocol. Anim. Reprod. Sci. 264:107471</li> <li>Prado, C. P., R. F. Cooke, A. K. Munhoz, K. Munhoz, M. C. G. de Sousa, V. M. P. da Silva, K. G. Pohler, and J. L. M. Vasconcelos. 2023. Characterizing pregnancy losses in Bos indicus beef females receiving a fixed-timed artificial insemination protocol. Theriogenology 215:144-150.</li> <li>Pickett, A. T., R. F. Cooke, I. S. de Souza, W. A. de Souza, G. A. Monteiro, M. B. do Prado, V. N. Gouvêa, R. C. Araujo, and S. J. Mackey. 2024. Supplementing yeast culture to beef heifers consuming a forage-based diet: effects on growth performance and ruminal fermentation responses. J. Anim. Sci. (in review) JAS-2024-9115</li> <li>Mackey, S. J., R. F. Cooke, A.T. Pickett, B. I. Cappellozza, K. M. Harvey, and B. B. Karisch. 2024. Supplementing a Bacillus-based probiotic to high-risk stocker cattle. J. Anim. Sci. 102: skae209</li> <li>Harvey, M., R. F. Cooke, A. T. Pickett, J. Cordero, M. E. Drewery, L. W. Rahmel, C. L. Daigle, T. Martins, and S. J. Mackey. 2024. Effects of moderate exercise regimen on development and puberty attainment of beef heifers reared in drylots at a high stocking density. J. Anim. Sci. 102:skae150</li> <li>Leiva, T., R. F. Cooke, P. V. F. Lasmar, R. L. Valarelli, J. M. C. de Simas, D. M. B. Zapa, L. F. M. Couto, L. M. Heller, and W. D. Z. Lopes. 2024. Supplementing narasin or monensin to control coccidiosis in naturally infected calves. Anim. Sci. 8:txae069</li> <li>Mackey, S. J., R. F. Cooke, and A. T. Pickett. 2024. Administering the maternal appeasing substance before slaughter to improve carcass characteristics of finishing cattle. Transl. Anim. Sci. 8:txae048.</li> <li>Cooke, R. F., L. R. Eloy, S. C. Bosco, P. V. F. Lasmar, J. M. C. de Simas, T. Leiva, and S. R. de Medeiros. 2024. An updated meta-analysis of the anti-methanogenic effects of monensin in beef cattle. Transl. Anim. Sci. 8:txae032</li> <li>Vedovatto, M., M. F. L. Ferreira, A. K. Edwards, J. A. Gurie, H. Marcon, J. Ranches, B. R. Reis, D. G. Vieira, E. A. Lima, M. Santos, G. L. Franco. Impact of a trace mineral injection at weaning on growth, behavior, and inflammatory, antioxidant, and immune responses of beef calves. Trans. Anim. Sci. In press.</li> <li>Scott, M. A., K. M. Harvey, B. B. Karisch, A. R. Woolums, R. M. Tracy, J. R. Russell, and C. L. Engel. 2024. Integrated blood transcriptome and multi-tissue trace mineral analyses of healthy stocker cattle fed complexed or inorganic trace mineral supplement. Animals. doi.org/10.3390/ani14152186.</li> <li>Cordero, J. F., K. M. Harvey, M. E. Drewery, M. G. McKnight, B. B. Karisch, L. S. Durst, E. A. Colombo, R. F. Cooke, and J. R. Russell. 2024. Impacts of trace mineral source and ancillary drench on steer performance during a 60-day backgrounding phase. Animal. doi.org/10.1016/j.animal.2024.101080.</li> <li>Jumper, W. I., C. C. Brown, S. Lee, D. Cook, J. M. Stilwell, and K. M. Harvey. 2024. Case report: Investigating an outbreak of tremorgenic mycotoxicosis in beef cows on pasture in Mississippi due to ergot (Claviceps paspali) production in Dallisgrass (Paspalum dilatatum). Bov. Pract. 58(2):59-68</li> <li>Green, M. M., A. R. Woolums, B. B. Karisch, K. M. Harvey, S. F. Capik, and M. A. Scott. 2023. Influence of the at-arrival host transcriptome on bovine respiratory disease incidence during backgrounding. Vet. Sci. doi.org/10.3390/vetsci10030211.</li> <li>Vedovatto, M., M. F. Ferreira, A. K. Edwards, J. A. Gurie, H. Marcon, J. Ranches, B. R. Reis, D. G. Vieira, E. A. Lima, M. Santos, and G. L. Franco. Impact of a trace mineral injection at weaning on growth, behavior, and inflammatory, antioxidant, and immune responses of beef calves. Translational Animal Science. Accepted for publication.</li> <li>Silva, L. G., M. Vedovatto, J. Ranches, M. F. Ferreira, E. A. Lima, F. J. C. Faria, L. C. L. Ferreira, R. L. Goncalves, and G. L. Franco. Effects of injectable trace minerals (Cu, Zn, Se, and Mn) and vitamins (A and E) on reproduction and antioxidant responses of Bos indicus beef females synchronized to fixed-time AI. Animal Reproduction Science (under review).</li> <li>Vieira, D. G., M. Vedovatto, H. J. Fernandes, E. D. A. Lima, M. C. D’Oliveira, U. D. A. Curcio, J. Ranches, M. F. Ferreira, O. A. D. Sousa, B. I. Cappellozza, and G. L. Franco. Effects of an appeasing substance application at weaning on growth, stress, behavior, and response to vaccination of Bos indicus calves. Animals 13:3033. <a href="https://doi.org/10.3390/ani13193033">https://doi.org/10.3390/ani13193033</a>.</li> <li>Vieira, D. G., M. Vedovatto, M. F. Ferreira, J. Ranches, B. I. Cappellozza, O. A. de Sousa, N. Canuto, M. de N. B. Gomes, and H. J. Fernandes. Appeasing substance administration at feedlot entry impacted temperament, pen behavior, immunocompetence, and meat quality of beef heifers. Animals (under review).</li> </ol>   Oral and Poster Abstracts   <ol> <li>Morrill, J.C., W.J. Horne, and B.L. Gwartney. 2024. Effects of bloom time on beef grading camera measures. (Reciprocal Meat Conference, Oklahoma City, OK)</li> <li>Izquierdo, V. S., B. I. Cappellozza, A. Gonella-Diaza, N. Ashrafi, R. A. Mimi, S. F. Graham, J. M. B. Vendramini, and Moriel. 2024. Effects of maternal pre- and post-partum supplementation of a Bacillus-based DFM on plasma metabolome profile of Bos indicus-influenced heifers and their offspring. J. Anim. Sci. 102(3):390-391. <a href="https://doi.org/10.1093/jas/skae234.443">doi:10.1093/jas/skae234.443</a></li> <li>Moriel, P., V. S. Izquierdo, J. M. B. Vendramini. 2024. Short- and long-term effects of heat stress in cow-calf pairs adapted to tropical and subtropical regions. J. Anim. Sci. 102(3):17-18. <a href="https://doi.org/10.1093/jas/skae234.018">doi:10.1093/jas/skae234.018</a></li> <li>Izquierdo, V., J. M. B. Vendramini, and Moriel. 2024. Awardee Talk: Nutritional management to optimize cow-calf production in Southeast. J. Anim. Sci. 102(3):357-358. <a href="https://doi.org/10.1093/jas/skae234.408">doi:10.1093/jas/skae234.408</a></li> <li>Moriel, P., V. Izquierdo, C. Brauner, and J. M. B. Vendramini. 2024. Overview of probiotic supplementation and opportunities to improve cow-calf production. J. Anim. Sci. 102(3):391-392. <a href="https://doi.org/10.1093/jas/skae234.444">doi:10.1093/jas/skae234.444</a></li> <li>Souza, I. R. T., Moriel, G. R. R. Monar, P. H. L. Lima, A. A. B. M. Carvalho, G. F. Oliva, K. V. Z. Augusto, M. A. F. Porcionato, D. B. Araujo, and J. L. M. Vasconcelos. 2024. Impacts of supplementing sulfate vs. hydroxychloride sources of Cu, Mn, and Zn on heifer growth performance and physiology during feed restriction and high-starch challenge periods. J. Anim. Sci. 102(3):74-75. <a href="https://doi.org/10.1093/jas/skae234.083">doi:10.1093/jas/skae234.083</a></li> <li>Izquierdo, V. S., B. I. Cappelloozza, J. V. L. Silva, G. C. M. Santos, A. Miranda, J. H. J. Bittar, A. Pickett, S. Mackey, R. F. Cooke, J. M. B. Vendramini, and Moriel. 2024. Maternal pre- and post-partum supplementation of Bacillus-based DFM enhanced cow and calf performance. J. Anim. Sci. 102:33-34. <a href="https://doi.org/10.1093/jas/skae019.038">doi:10.1093/jas/skae019.038</a></li> <li>Bennett, A., C. C. Constantino Rocha, A. Waheed, M. Brown, G. D. De Melo, R. Marcello, R. Chebel, Moriel, R. Krisher, K. G. Pohler, P. J. Hansen, and M. Binelli. 2024. Assessing abundance of pregnancy markers among fertility-classified beef cows. J. Anim. Sci. 102:25-26. <a href="https://doi.org/10.1093/jas/skae019.029">doi:10.1093/jas/skae019.029</a></li> <li>Rocha, C. C. C., A. B. Montevecchio, M. Mazziotta, A. Bennett, A. Waheed, M. Campbell, M. Rubessa, R. Krisher, Moriel, P. J. Hansen, R. Chebel, and M. Binelli. 2024. Estradiol and folicular growth are associated with estrous behavior monitored by na accelometer in grazing beef cows. J. Anim. Sci. 102:37-38. <a href="https://doi.org/10.1093/jas/skae019.041">doi:10.1093/jas/skae019.041</a></li> <li>Brauner, C., V. S. Izquierdo, J. M. B. Vendramini, and Moriel. 2024. A 12-year summary effects of body weight at breeding and synchronization protocols on reproductive success of Bos indicus-influenced beef heifers grazing warm-season grasses. J. Anim. Sci. 102:65-66. <a href="https://doi.org/10.1093/jas/skae019.077">doi:10.1093/jas/skae019.077</a></li> <li>Silva, J.V.L., J.M.B. Vendramini, H.M. Silva, H.M. de Oliveira, J. Garzon, D. Cook, D. Gardner, and Moriel. Use of sunn hemp as forage for early-weaned beef calves.American Forage and Grassland Council 2024 Conference, Mobile, AL.</li> <li>Izquierdo, V. S., J. Silva, E. Palmer, J. Ranches, J. Bittar, A. Pickett, R. F. Cooke, J. Vendramini, and P. Moriel. 2023. Bakery waste supplementation to late gestating Bos indicus-influenced beef cows successfully impacted offspring postnatal performance. J. Anim. Sci. 101:76-77. <a href="https://doi.org/10.1093/jas/skad281.093">doi:10.1093/jas/skad281.093</a></li> <li>Silva, J.V.L., J.M.B. Vendramini, H.M. Silva, H.M. de Oliveira, J. Garzon, D. Cook, D. Gardner, and Moriel. 2023. Use of sunn hemp as forage for early-weaned beef calves.J. Anim. Sci. 101:376-377. <a href="https://doi.org/10.1093/jas/skad281.447">doi:10.1093/jas/skad281.447</a></li> <li>Izquierdo, V., J. Lazarin, H. Silva, J. Ranches, J. A. Carroll, N. C. Burdick-Sanchez, J. Bittar, J. Vendramini, and Moriel. 2023. Impacts of pre- and postpartum heat stress abatement on physiology and performance of grazing Bos indicus-influenced cow-calf pairs. J. Anim. Sci. 101(1):41-41. <a href="https://doi.org/10.1093/jas/skad068.047">doi:10.1093/jas/skad068.047</a></li> <li>Lazarin, J., J. Vendramini, Moriel, H. Silva, V. Izquierdo, J. Garzon, and N. Lage. 2023. Supplementation level effects on early weaned beef calves receiving annual ryegrass. J. Anim. Sci. 101(1):17-18. <a href="https://doi.org/10.1093/jas/skad068.020">doi:10.1093/jas/skad068.020</a></li> <li>Lazarin, J.V.S., J.M.B. Vendramini, H. M. Silva, H. M. de Oliveira, J. Garzon, D. Cook, D. Gardner, and Moriel. 2024. Use of sunn hemp as forage for early-weaned beef calves. 2024 American Forage and Grassland National Meeting, Mobile, AL.</li> <li>Vendramini, J., J. Lazarin, M. L. Silveira, H. Da Silva, H. De Oliveira, J. Garzon, D. Cook, D. Gardner, R. Cooke, and P. Moriel. 2024. Use of sunn hemp as forage for beef cattle. 75th European Association of Animal Production Annual Meeting, Florence, Italy.</li> <li>Silveira, M., J. Vendramini, and R. Bracho. Carbon dynamics and greenhouse fluxes in subtropical grazing lands. 75th European Association of Animal Production Annual Meeting, Florence, Italy.</li> <li>Vendramini, J. M. B., and P. Moriel. 2024. Microbial inoculant effects on cool- and warm-season grass silage. 2024 ASAS International Meeting, Calgary, AB.</li> <li>Lazarin, J. V., J. M. B. Vendramini, and P. Moriel. 2024. Microbial inoculant effects on limpograss silage. 2024 ASAS International Meeting, Calgary, AB.</li> <li>Cooke, R. F., S. Mackey, F. Cooke, A. Pickett, K. Harvey, B. Karisch, and B. Cappellozza. 2024. Supplementing Bovacillus to weaned beef steers during a 90-day grazing period. EAAP Book of Abstracts (75th Annual Meeting, Florence, Italy):275</li> <li>Cooke, R. F., F. Cooke, S. Mackey, A. Pickett, and K. Harvey. 2024. Effects of moderate exercise regimen on reproductive development of replacement beef heifers reared in drylots at a high stocking density. EAAP Book of Abstracts (75th Annual Meeting, Florence, Italy):509</li> <li>Vendramini, J., J. Lazarin, M. L. Silveira, H. Da Silva, H. De Oliveira, J. Garzon, D. Cook, D. Gardner, R. F. Cooke, and P. Moriel. 2024. Use of sunn hemp as forage for beef cattle. EAAP Book of Abstracts (75th Annual Meeting, Florence, Italy):218</li> <li>Mackey, S. J., R. F. Cooke, A. Pickett, and B. Cappellozza. 2024. Supplementing Bovacillus to feedlot cattle finished under heat stress conditions. J. Anim. Sci. 102(Supplement 3):772-773.</li> <li>Cooke, R. F., S. Mackey, F. Cooke, A. Pickett, K. Harvey, B. Karisch, and B. Cappellozza. 2024. Supplementing Bovacillus to weaned beef steers during a 90-day grazing period. J. Anim. Sci. 102(Supplement 3):395-396.</li> <li>Cooke, R. F. and J. L. M. Vasconcelos. 2024. Pregnancy losses in Bos indicus-influenced cowherds. J. Anim. Sci. 102(Supplement 3):100-100.</li> <li>Cooke, R. F., N. C. Kertz, A. Pickett, and S. Mackey. 2024. Administering the maternal bovine appeasing substance before slaughter to improve carcass characteristics of finishing cattle. J. Anim. Sci. 102(Supplement 3):560-561.</li> <li>Cooke, R. F., S. Mackey, A. Pickett, E. Colombo, B. I. Cappellozza, B. B. Karisch, and K. M. Harvey. 2024. Supplementing Bovacillus to newly weaned beef steers during a 90-d grazing period. J. Anim. Sci. 102(Supplement 1):73-74.</li> <li>Pickett, A., R. F. Cooke, L. W. Rahmel, S. Mackey, M. Drewery, J. Cordero, T. Mackey, C. L. Daigle, T. Martins, and K. M. Harvey. 2024. Effects of moderate exercise regimen on reproductive development of replacement beef heifers reared in drylots at a high stocking density. J. Anim. Sci. 102(Supplement 1):35–36.</li> <li>McKnight, M., W. I. Jumper, K. M. Harvey, M. E. Drewery, C. W. Potts, J. F. Cordero, J. R. Russell, and D. R. Smith. 2024. Describing the consumption of chlortetracycline-containing mineral offered free-choice to pregnant commercial beef cows on pasture. 2024 Spring MSU Graduate Research Symposium Abstract Book.</li> <li>McKnight, M., K. M. Harvey, B. B. Karisch, J. Cordero, M. Drewery, L. S. Durst, E. Colombo, R. F. Cooke, and J. R. Russell. 2024. Impacts of trace mineral source and ancillary drench on steer performance during a 60-day backgrounding phase. J. Anim. Sci. (E-Suppl. 3): In press.</li> <li>Ramirez, B., H. McAllister, S. Capik, R. Valeris-Chacin, K. Harvey, B. Karisch, A. Woolums, P. S. Morley, L. Pinnell, and M. Scott. 2024. Update on the molecular epidemiological assessment of beef cattle management systems. CRAWD Abstract Book.</li> <li>Jumper, W. I., M. G. McKnight, K. Harvey, J. F. Cordero, J. R. Russell, and D. R. Smith. 2024. Measuring intake of chlortetracycline-containing mineral offered free-choice to beef cows on pasture. CRAWD Abstract book.</li> <li>Ramirez, B., H. McAllister, S. Capik, R. Valeris-Chacin, K. Harvey, A. Woolums, B. Karisch, and M. Scott. 2024. Longitudinal blood RNA-Seq analysis of cattle to determine the impact of vaccination and marketing on clinical BRD. CRAWD 2024 Abstract Book.</li> <li>McKnight, M. M., W. I. Jumper, J. Cordero, K. M Harvey, J. R. Russell, and D. R. Smith. 2023. Describing the consumption of chlortetracycline-containing mineral offered free-choice to commercial beef cows on pasture. 2023 Spring MSU Undergraduate Research Symposium Abstract Book.</li> <li>McKnight, M. M., W. I. Jumper, J. Cordero, K. M Harvey, J. R. Russell, and D. R. Smith. 2023. Describing the consumption of chlortetracycline-containing supplement offered free-choice to commercial beef cows on pasture. J. Anim. Sci. (E-Suppl. 3): 423-424.</li> <li>Scott, M. A., K. M. Harvey, B. B. Karisch, A. R. Woolums, and J. R. Russell. 2023. Integrated transcriptome and multi-tissue mineral analyses of healthy stocker cattle fed complexed or inorganic trace mineral supplement. 56th AAPB Abstract Book.</li> <li>Cordero, J. F., G. M. D’Souza, L. W. Rahmel, L. S. Durst, B. B. Karisch, C. L. Daigle, J. R. Russell, and K. M. Harvey. 2023. Feeding behavior of high-risk steers newly received for backgrounding. J. Anim. Sci. (E-Suppl. 3): 85-86.</li> <li>Harvey, K., L. Rahmel, J. Cordero, B. Karisch, and J. Russell. 2023. Impacts of trace mineral source and ancillary drench on steer performance during backgrounding. 74th EAAP Abstract Book.</li> <li>Siqueira, I., R. Gomes, H. Marcon, J. Chinaglia, M. Vedovatto, B. Reis and M. Ferreira. Nutritional and Management Strategies to Mitigate Heat Stress in Beef Cow-Calf Systems in the Southern US. 10th International Education Week Research Fair. Baton Rouge, LA.</li> <li>Lima, E.A., Vedovatto, M., Farias, F., Ranches, J., Ferreira, M., Cappellozza, B.I., Souza, O. and Franco, G.L.L. 2024. Effect of an appeasing substance application on growth, stress, handling quality and reproduction of Bos indicus beef heifers synchronized to fixed-time AI. Journal of Animal Science. 102(Supplement_1):62-63. <a href="https://doi.org/10.1093/jas/skae019.074">https://doi.org/10.1093/jas/skae019.074</a>.</li> <li>Silva, L. G., M. Vedovatto, J. Ranches, M. F. Ferreira, E. A. Lima, F. J. C. Faria, L. C. L. Ferreira, R. L. Goncalves, and G. L. Franco. Effects of an injection of trace minerals (Cu, Zn, Se, and Mn) and vitamins (A and E) on reproduction and inflammatory responses of Bos indicus beef females synchronized to fixed-time AI. Annual Meeting of the Brazilian Society of Embryo Technology – SBTE, Campinas, São Paulo, Brazil.</li> <li>Silva, L. G., M. Vedovatto, J. Ranches, M. F. Ferreira, E. A. Lima, F. J. C. Faria, L. C. L. Ferreira, R. L. Goncalves, and G. L. Franco. Effects of an injection of copper and zinc on reproduction and inflammatory responses of Bos indicus beef females synchronized to fixed-time AI. Annual Meeting of the Brazilian Society of Embryo Technology – SBTE, Campinas, São Paulo, Brazil</li> </ol>   Popular Articles   <ol> <li>Moriel, P. 2024. Program your calves for success. Angus Beef Bulletin EXTRA. 16:10B.</li> <li>Moriel, P. 2024. Probiotic supplementation for beef females. The Florida Cattlemen and Livestock Journal.</li> <li>Brauner, C., E. Schmitt, V. Isquierdo, and P. Moriel. 2024. Precalving body condition score and the decision about supplementing or not beef cows. Revista Pecuária Sul. Rio Grande do Sul, Brazil. 18:16-20.</li> <li>Moriel, P. 2024. Nutritional impacts on beef cow reproduction. The Florida Cattlemen and Livestock Journal. 88(9):40-46.</li> <li>Moriel, P. 2024. UF/IFAS Range Cattle Research and Education Center research update. The Florida Cattlemen and Livestock Journal. 87(9):102-108.</li> <li>Moriel, P. Using body condition score to increase pregnancy success of beef cows and growth of their calves in Florida. Ona Summer Newsletter – Feature article. August 2024.</li> <li>Brauner, C., E. Schmitt, V. Isquierdo, and P. Moriel. 2024. Developing replacement beef heifers. Revista Pecuária Sul. Rio Grande do Sul, Brazil. 17:13-16</li> <li>Brauner, C., E. Schmitt, and P. Moriel. 2024. Using early weaning and creep-feeding in beef systems. Revista Pecuária Sul. Rio Grande do Sul, Brazil. 15:11-15</li> <li>Moriel, P. 2024. Body condition score before and after calving determine pregnancy success of beef cows in Florida. Article of the month (February), South Florida Beef Forage Program.</li> <li>Moriel, P. 2023. Fatty acid supplementation and pregnancy rates of beef cows. The Florida Cattlemen and Livestock Journal. 88(1):46-48.</li> <li>Moriel, P. 2023. UF/IFAS Range Cattle Research and Education Center research update. The Florida Cattlemen and Livestock Journal. 87(9):102-108.</li> <li>Moriel, P. 2023. Can we decrease frequency of concentrate supplementation for young growing beef calves? Article of the month (February), South Florida Beef Forage Program.</li> </ol>   <h3>Scientific and Outreach Oral Presentations (related to Objectives 1 and 2 only)</h3> <h3> </h3> <ol> <li>Moriel, P. 2024. Nutrition for beef females. Deseret Ranch visit. Sep. 20, 2024. St. Cloud, FL. 40 attendees.</li> <li>Moriel, P. 2024. Cow herd nutrition during pregnancy: impact on subsequent fertility and offspring performance. Proceedings 2024 Applied Reproductive Strategies in Beef Cattle, September 4-5, 2024, Athens, GA.</li> <li>Moriel, P. 2024. Ruminant nutrition symposia: Overview of probiotic supplementation and opportunities to improve cow-calf production. 2024 American Society of Animal Science, Calgary, Canada. Jul 23rd, 2024. 200 attendees.</li> <li>Moriel, P. 2024. Animal Behavior and Well-being Symposia: Short- and long-term effects of heat stress in cow-calf adapted to tropical and subtropical regions. 2024 American Society of Animal Science, Calgary, Canada. Jul 22nd, 2024. 100 attendees.</li> <li>Moriel, P. 2024. ASAS-WSASAS Beef Species Symposia: Impacts of supplementing sulfate vs. hydroxychloride sources of Cu, Mn, and Zn on heifer growth performance and physiology during feed restriction and high-starch challenge periods. 2024 American Society of Animal Science, Calgary, Canada. Jul 22nd, 2024. 200 attendees.</li> <li>Moriel, P. 2024. Impacts of BCS and probiotics on cow-calf production. Ona in-service training, Range Cattle REC, University of Florida, Ona. May 23rd, 2024. 11 attendees.</li> <li>Moriel, P. 2024. Nutritional impacts on female reproduction. Ona highlight, University of Florida, Ona. May 21st, 2024. 25 attendees.</li> <li>Moriel, P. 2024. Probiotic supplementation for replacement beef heifers. 73rd Florida Beef Cattle Short Course, University of Florida, Gainesville. May 10th, 2024. 200 attendees.</li> <li>Moriel, P. 2024. Nutrition for reproduction. 2024 Reproductive Management School. April 16th, 2021, Clewiston, FL. 20 attendees</li> <li>Moriel, P. 2024. Fetal programming and importance of body condition score. 2024 Reproductive Management School. April 16th, 2021, Clewiston, FL. 20 attendees</li> <li>Moriel, P. 2024. Nutritional management to optimize cow-calf production in the Southeast – 2024 Florida Ruminant Nutrition Symposium. Feb. 28, 2024. Gainesville, FL. 300 attendees.</li> <li>Moriel, P. 2024. Managing cow body condition score – Cattlemen’s Roundtable. Feb. 21, 2024. Okeechobee, FL. 40 attendees.</li> <li>Moriel, P. 2023. Heat stress in grazing beef cattle in Florida – Adams Ranch Field Day. Nov. 8, 2023. Fort Pierce, FL. 30 attendees.</li> <li>Moriel, P. 2023. Early weaning. Winter Supplementation – South Florida Beef and Forage Program. Sep. 14, 2023. Okeechobee, FL. 40 attendees.</li> <li>Rosasco, S., and P. Moriel. 2023. Management strategies to enhance fertility and longevity in replacement heifers. Proceedings 2023 Applied Reproductive Strategies in Beef Cattle, September 6-7, 2023, Cheyenne, Wyoming. 200 attendees.</li> <li>Moriel, P., and S. Rosasco. 2023. Pre- and post-calving nutrition: which one is more important? Beef Reproduction Task Force – Spring Webinar Series – June 27th, 2023. 88 attendees. 302 YouTube Views.</li> <li>Moriel, P. 2023. Pre- and post-calving nutrition: which one is more important? 6th Annual Nutrition for Beef Females – June 6th, 2023, Seminole tribe, FL. 54 attendees.</li> <li>Moriel, P. 2023. Pre- and post-calving nutrition: which one is more important? 6th Annual Nutrition for Beef Females – May 31th, 2023, Ona, FL. 46 attendees.</li> <li>Moriel, P. 2023. Pre- and post-calving nutrition: which one is more important? 6th Annual Nutrition for Beef Females – May 24th, 2023, Dade City, FL. 39 attendees.</li> <li>Moriel, P. 2023. Fatty acid supplementation to increase pregnancy rates in multiparous beef cows. 72nd Florida Beef Cattle Short Course, University of Florida, Gainesville. May 12th, 2023. 200 attendees.</li> <li>Supplementing Bovacillus to weaned beef steers during a 90-day grazing period. EAAP 75th Annual Meeting, Florence, Italy.</li> <li>Effects of moderate exercise regimen on reproductive development of replacement beef heifers reared in drylots at a high stocking density. EAAP 75th Annual Meeting, Florence, Italy.</li> <li>Supplementing Bovacillus to weaned beef steers during a 90-day grazing period. ASAS 2024.</li> <li>Pregnancy losses in Bos indicus-influenced cowherds. ASAS 2024.</li> <li>Administering the maternal bovine appeasing substance before slaughter to improve carcass characteristics of finishing cattle. ASAS 2024.</li> <li>Supplementing Bovacillus to newly weaned beef steers during a 90-d grazing period. ASAS Southern Section 2024.</li> <li>Effects of moderate exercise regimen on reproductive development of replacement beef heifers reared in drylots at a high stocking density. ASAS Southern Section 2024.</li> </ol> Scientific and Outreach oral presentation (related to Objectives 1 and 2 only).   <ol> <li>M. Harvey. 2024. Impact of temperament and stress on reproduction. Applied Reproduction</li> <li>Strategies in Beef Cattle – Athens, GA (09/05/2024).</li> <li>M. Harvey. 2024. Body condition score: Impacts on cow productivity. Itawamba County Cattlemen’s Meeting – Fulton, MS (08/01/2024)</li> <li>M. Harvey. 2024. Mineral nutrition and impacts on cow productivity. Lee County Cattlemen’s Meeting – Tupelo, MS (05/17/2024)</li> <li>R. dos Reis. 2024. Beef cattle Winter Nutrition Strategies. In: Lincoln Cattlemen Meeting- Brookhaven, MS (03/05/2024).</li> <li>R. dos Reis. 2024. Beef cattle Nutrition Strategies. In: Pearl River Cattlemen Meeting- Poplarville, MS (02/28/2024).</li> <li>M. Harvey. 2024. Beef cattle nutrition. MSU Extension – North MS Beef Expo, Ripley, MS. (11/02/2023)</li> <li>R. dos Reis. 2023. Weaning Management. In: Hancock Cattlemen Meeting- Kiln, MS (10/05/2023).</li> <li>M. Harvey. 2023. Applied research to improve cattle productivity. Pontotoc County Cattlemen’s Meeting – Pontotoc, MS (05/18/2023).</li> <li>M. Harvey. 2023. Methods of pregnancy detection. Beef Repro Boot Camp – Prairie, MS (04/28/2023)</li> <li>M. Harvey. 2023. Stockmanship and low stress cattle handling. Lee County Cattlemen’s Meeting – Tupelo, MS (04/20/2023).</li> <li>Ferreira, M. 2024. Heat stress in grazing cattle. Northwest Region Beef and Forage Field Day. Red River Research Center, April 24th.</li> <li>Ferreira, M. 2024. Seminar. Heat stress in grazing cattle. DeSoto Parish Cattleman’s Field Day. May 10th.</li> <li>Vedovatto, M. 2024. Seminar. Mineral nutrition for grazing beef cattle. Agrischool Nutriflex. Timac Agro - Brazil. March 3.</li> <li>Vedovatto, M. 2024. Seminar. 1) Backgrounding calves: management decision and opportunities and 2) Current Research Projects being conducted at Iberia Research Center: preliminary results. Acadiana 2024 Spring Beef Cattle Field Day. Iberia Research Center, Jeanerette, LA, Mar 16.</li> <li>Vedovatto, M. 2023. Seminar. Results of our experiment of an appeasing substance administration in beef cattle. Welfare at weaning meeting. Nutricorp - Brazil. May 25, 2023.</li> <li>Vedovatto, M. 2023. Seminar. Current experiments being conducted at DLREC. Louisiana Forage Conference. Alexandria, LA. Dec 1.</li> <li>Vedovatto, M. 2023. Seminar. Management systems for beef cattle reared in subtropical and tropical environments. USDA multi-state meeting. Montgomery, TX, Nov 6-8.</li> <li>Vedovatto, M. 2023. 1) Seminar. Weaning Methods and Management and 2) Current research projects being conducted at Iberia Research Center. Acadiana 2023 Fall Beef Cattle Field Day. Iberia Research Center, Jeanerette, LA, Oct 21.</li> <li>Vedovatto, M. 2023. Seminar. Experiences in Animal Science, Cattle. Dean Lee Research and Extension Center Tour Day - Junior Ag Leadership Class. Alexandria, LA, Oct 16.</li> <li>Vedovatto, M. 2023. Seminar. 1) Weaning Methods and Calf Performance and 2) Mineral Nutrition on Livestock Productivity. Northeast Louisiana Beef and Forage Field Day. Goldmine Plantation, South Richland Parish, LA, Sept 21.</li> <li>Vedovatto, M. 2023. Seminar. Minerals and Vitamins for Beef Cattle. LSU Agcenter Livestock and Forages Agent Training. Alexandria, LA, Sep 14. Talk.</li> <li>Vedovatto, M. 2023. Seminar. 1) Weaning Methods and Management and 2) Current Research Projects at Dean Lee. Beef & Forage Field Day. Alexandria, LA, Sep 14, 2023.</li> </ol>

Impact Statements

Nelore heifers preferred mineral and protein supplements with hydroxychloride over sulfate sources, showing more consistent intake compared to Angus × Nelore heifers.
Nelore heifers supplemented with hydroxychloride sources of Cu, Mn, and Zn had a brief increase in average daily gain during nutrient surplus, compared to those on sulfate sources.
Breed influenced the physiology and growth of beef heifers during nutrient restriction. Replacing sulfate with hydroxychloride sources of Cu, Mn, and Zn had minor positive effects on serum indicators, boosted growth during nutrient restriction, and reduced diarrhea during grazing.
Bos indicus-influenced beef heifers need to achieve ≥65% of mature body weight at the start of the breeding season to optimize reproduction.
Low-fat bakery waste led to greatest calf preweaning growth, whereas high-fat bakery waste enhanced maternal reproduction and had minor benefits to calf humoral immune function.
Removing maternal access to artificial shade reduced maternal prepartum body condition score but boosted offspring post-weaning growth performance and humoral immune response.
Precalving supplementation improved reproduction of thin cows and weaning weight of calves born from cows with optimal body condition score at calving.
Maternal supplementation of a Bacillus-based DFM increased enhanced maternal performance and offspring growth and immune response.
Feeding sunn hemp may decrease the value of early-weaned beef calves by $ 55/head (considering the market price of $2.50/lb and 90 d feeding period )
The use of rotational stocking in cows grazing rangelands in Florida increases production cost due to fencing and labor and does not increase animal performance and vegetation characteristics.
Fixing the supplementation level of early-weaned claves grazing annual ryegrass during the winter is a feasible management practice to optimize animal performance and forage utilization.
Lactating Holstein cows reared in tropical conditions lost 28.5% of the pregnancies after day 31 of gestation. Most of these losses were caused by fetal mortality after day 62 gestation (17.8%)
Timed embryo transfer allows evaluation of pregnancy losses throughout gestation. In dairy and beef systems within tropical environments, most pregnancy losses occurred from early embryonic mortality. Late embryonic + fetal mortalities were also elevated and not related to diseases
In tropical cow-calf systems, Bos indicus females lost 22.1% of the pregnancies after day 30 of gestation. Most of these losses were caused by fetal mortality from day 60 to 150 of gestation
Yeast cultures from Saccharomyces cerevisiae can be used as feed additive to improve growth performance of beef cattle consuming forage-based diets
Supplementing a Bacillus subtilis + B. licheniformis probiotic to high-risk cattle increased pasture-based liveweight production by 28% in a 90-day stocker production system.
Stocking density and exercise opportunities should be considered to improve heifer welfare and reproductive development in intensive drylot systems, as lack of exercise directly contributes to delayed reproductive development of drylot heifers
Administering the maternal bovine appeasing substance to finishing cattle prior to slaughter increased carcass dressing and reduced the proportion of dark cutters by more than half
The application of a trace minerals injection at weaning improved Cu and Se status, enhanced antioxidant and immune responses, and reduced stress and inflammation in calves, though it did not affect growth of Bos indicus calves.
The application of a trace minerals and vitamins injection at the beginning of a fixed-timed AI protocol reduced the inflammatory responses and improved the antioxidant response and reproduction parameters, mainly in Bos indicus females with low body condition score.
The administration of a bovine appeasing substance at weaning improved body weight, reduced temperament and serum cortisol concentration, and improved behavior and response to vaccination of grazing Bos indicus beef calves.
The administration of a bovine appeasing substance at feedlot entry increased growth, reduced stress, and inflammation, and improved humoral immune responses, behavior, and meat quality of Brangus heifers.
Provision of artificial shade assisted beef cows under heat stress conditions maintain BCS and reduce intravaginal temperature, but no effect of Cr supplementation was observed. On the other hand, artificial shade combined with Cr supplementation during mid and late gestation enhanced cows body weight.
Unbloomed, dark lean color results in lower grading camera marbling scores compared to bloomed, redder lean color. These findings may have important implications for Bos indicus cattle, which may require longer feeding time, and thus may have, different lean color compared to B. taurus breeds

Date of Annual Report: 11/12/2025

Report Information

Annual Meeting Dates: 10/23/2025 - 10/24/2025
Period the Report Covers: 10/01/2024 - 09/30/2025

Participants

Reinaldo Cooke
Ky Pohler
Barbara Reis
Marcelo Vedovatto
Matheus Ferreira
Joao Vendramini
Juliana Ranches
Pedro Fontes
Rodrigo Marques
Vinicius Gouvea
John Arthington

Brief Summary of Minutes

S1093 – Business Meeting Minutes

October 23rd and October 24th, 2025

Location: Texas A&M Animal Reproductive Biotechnology Center 1895 Avenue D - Bryan, TX 77807

October 23rd, 2025

The meeting was opened by the chair, Marcelo Vedovatto.

Members in attendance: Reinaldo Cooke, Ky Pohler, Barbara Reis, Marcelo Vedovatto, Matheus Ferreira, Joao Vendramini, Juliana Ranches, Pedro Fontes, Rodrigo Marques, Vinicius Gouvea, and John Arthington

States represented: Florida, Louisiana, Mississippi, Oregon, Texas, Georgia, and Virginia.

Moderated by the chair, introductions and greetings were conducted, with each member presenting their current research, ongoing and future collaborations, and potential contributions to the group. The session included a visit to the new facilities and laboratories at the Texas A&M Animal Reproductive Biotechnology Center.

Main considerations:

Strong, well-established collaborations already exist among group members.

Reminder to acknowledge this multi-state group in manuscripts and publications related to its activities and collective efforts.

The meeting was adjourned for the evening by the chair.

October 24th, 2025, Business Meeting

Meeting was opened by the chair

Election of officers for 2025-2026:

- Barbara Reis was elected Chair for 2025-2026.

- Rodrigo Marques was elected secretary for 2025-2026.

Overall discussion moderated by the chair:

The group discussed nominating Rodrigo as the next secretary and agreed to move forward with his nomination.

Biloxi and New Orleans were identified as potential locations for next year’s meeting.

Barbara Reis, together with Marcelo and Matheus (members from Louisiana), will check the possibility of hosting the meeting at LSU in New Orleans.

If that is not feasible, Barbara Reis will explore hosting the meeting at the Coastal Research and Extension Center (CREC-MSU) in Biloxi as a backup option.

The group discussed the challenges of securing sponsorships, negotiating hotel rates, and obtaining government-rate accommodation. Members emphasized the importance of selecting affordable, accessible venues and leveraging university facilities when possible.

The group considered adding a new member with expertise in meat science to strengthen the team’s diversity of expertise.

Members discussed the possibility of submitting a group grant proposal next year and agreed to reach out to Rob Godfrey to explore this opportunity.

Barbara Reis called for a motion to adjourn the business meeting. The motion was first made by Pedro Fontes and seconded by Joao Vendramin.

Accomplishments

Objective 1. Identify and fully comprehend the biological functions associated with growth, health, and reproduction in Bos indicus-influenced cattle reared in tropical and subtropical environments Georgia <ul> <li>Reproductive consequences of young sire overnutrition in the bovine: I) Systemic metabolic and endocrine profile. Conclusions: High gain dietary treatment (diet formulated to promote an average daily gain of 1.8 kg/d) utilized in the study promoted an obese-like metabolic profile along with increased insulin resistance and systemic inflammation compared with the moderate gain diet (diet formulated to promote an average daily gain of 1.2 kg/d).</li> <li>Reproductive consequences of young sire overnutrition in the bovine: II) Effects on semen quality and sperm functional traits. Conclusions: The young bull overnutrition model used in this study negatively impacted semen quality, indicating that diet-induced over conditioning in young bulls decreases key sperm functional traits.</li> <li>Comparison of different GnRH compounds on fertility outcomes in ovulation synchronized and presynchronized beef cows. Conclusions: Fertility was improved through the use of presynchronization; however, no differences in fertility parameters were determined between GH and GDT in either synchronized or presynchronized beef cows.</li> <li>Impact of early resynchronization in combination with color Doppler ultrasonography on cumulative pregnancy rates and calving distribution in postpartum beef cows. Conclusions: Early Resynchronization strategy utilized herein as a second service strategy decreased reproductive performance compared with natural service.</li> <li>Impact of late embryonic and early fetal mortality on productivity of beef cows. Conclusions: Cows experiencing late embryonic/early fetal mortality exhibited reduced overall performance not only compared to those that maintained their FTAI pregnancy but also to cows that failed to conceive to FTAI, underscoring the detrimental impact of LEEFM on cow productivity.</li> </ul>  Louisiana <ul> <li> Chromium propionate supplementation during late gestation in Brangus cows alters offspring growth, physiology, and neonatal hepatic transcriptome. Conclusions: Cr supplementation during late gestation enhances the performance and physiology of cows, while improving offspring growth and physiology, and modulating hepatic gene expression.</li> <li>Impacts of chromium propionate supplementation during preconditioning on growth, temperament, physiology, immunity, and rumen fermentation of Brangus steers. Conclusions: Supplementation with Cr propionate during preconditioning improved growth, enhanced immune responses to vaccination, reduced excitability, and modulated metabolic and ruminal fermentation profiles in beef calves.</li> <li>Effects of temperament on metabolic and hormonal profile, performance and puberty attainment of grazing Brangus heifers. Conclusions: Ongoing study.</li> <li>Fetal programming effects of removing maternal heat abatement on offspring growth, and thermotolerance during background phase. Conclusions: : Calves born to shaded cows were heavier at weaning, on d 14, 48 and 112 postweaning (P ≤ 0.03). Calves born to no shaded cows tended to lose more weight from weaning to d 3 postweaning (P = 0.09). No difference between treatment was detected for overall average daily gain (P = 0.89). Heifer calves born from shaded cows had lower average IT, compared to heifer calves born from no shaded cows (38.7 vs 38.9 ˚C; P = 0.03). Maternal heat stress during gestation reduced offspring growth and thermotolerance during summer background phase.</li> </ul>   Mississippi <ul> <li> The effects of a single-dose injectable trace mineral solution on performance in beef cattle during preconditioning and feedlot receiving: a systematic review and meta-analysis. Conclusions: Usage of an ITM solution did not affect overall ADG but may increase ADG within specific production circumstances.</li> <li>Effects of trace mineral injection at weaning on growth, inflammatory and immune responses in Bos indicus-influenced beef steers with or without growth-promoting implants. Conclusions: Preweaning estradiol implants improved weaning weight, and ITM administration at weaning enhanced antibody response to respiratory vaccines. The combination of both treatments tended to increase post-weaning body weight and immune activation.</li> <li>Impact of shade and chromium supplementation on performance, carcass characteristics and oxidative stress of finishing steers in hot environmental conditions. Conclusions: Steers receiving Cr were heavier at the end of the study (P= 0.01). No effect of treatment and treatment × day was found for glucose and insulin concentrations.</li> <li>Effects of creep feeding supplementation and growth-promoting implants on pre and postweaning performance of Bos indicus-influenced calves. Conclusions: </li> </ul>  Virginia <ul> <li>Effects of maternal Cu, Mn, and Zn supplementation from different sources on physiological and productive responses of cows and their offspring. Conclusions: Overall, prenatal trace mineral supplementation is beneficial, but mineral source did not significantly affect cow-calf performance outcomes.</li> <li>Effects of omega-3 polyunsaturated fatty acid supplementation to first-calf beef heifers during late gestation on offspring physiology and performance. Conclusions: Overall, omega-3 supplementation during gestation may have beneficial programming effects on offspring growth and health, making it a potentially valuable strategy to enhance productivity in beef systems.</li> <li>Maternal Injectable Mineral Administration Effects on Calf Growth and Reproductive Parameters. Conclusions: In summary, maternal injectable mineral administration during mid to late gestation increased calf birth weights and tended to increase weaning weights and ADG between birth and weaning but no improvements in heifer body weight postweaning or reproductive parameters.</li> <li>Using audio-visual monitoring to evaluate immune and behavioral indicators to lipopolysaccharide challenge in beef cattle. Conclusions: In this study, LPS administration induced measurable behavioral and physiological changes that could be captured through integrated video and audio monitoring systems. This approach highlights the potential of combining camera and microphone technologies for continuous, automated health surveillance in beef cattle.</li> </ul>   Florida <ul> <li>Heat stress mitigation during prepartum and postpartum altered the plasma metabolome in Bos indicus-influenced cow-calf pairs. Conclusion: Access to shade for pregnant heifers altered their glutamate metabolism and appeared to decrease lipolysis compared with no access to shade. Access to shade programmed the calf metabolism to increase primarily glutamate utilization and reduce oxidative stress markers.</li> </ul>  Oklahoma <ul> <li>Genomic Prediction via Reaction Norm Models (RNM) for Pregnancy Loss Using Temperature Humidity Index in Brahman Cattle. Conclusions: Changes in (co)variance components and genetic parameters provide evidence of genotype-by-environment interactions affecting the genetic response to PL in Brahman cattle under tropical conditions.</li> <li>Assessment of runs of homozygosity (ROH) islands and estimates of genomic inbreeding in Brahman cattle. Conclusions: </li> </ul>  Texas <ul> <li>Relationships between individual animal variation in dry matter intake and animal performance and feed efficiency of finishing beef cattle. Conclusions: The 2 measures of DMI variation appear to divergently explain variation in DMI and the relationship with production traits and feed efficiency. However, cattle with more improved production outcomes were associated with less day-to-day variation in DMI.</li> <li>The effect of increasing dietary limestone concentration on growth performance, gas flux, and carcass characteristics in finishing beef cattle. Conclusions: These preliminary data suggest that there may be a benefit to feeding limestone or calcium at levels greater than currently recommended by the NASEM (2016). Future research should focus on determining optimum dietary limestone or calcium levels for finishing cattle.</li> <li>Impacts of vaccination or lipopolysaccharide challenge on ruminal and physiological responses in beef cattle. Conclusions: Overall, administration of LPS and VACC elicited an inflammatory response in cattle with increased levels and plasma haptoglobin. However, only LPS administration reduced DMI and ruminal in situ disappearance parameters including ruminal disappearance rate and effective degradability of DM and NDF.</li> <li>Effects of timing of fat supplementation on intake, growth performance, carcass characteristics, and methane emissions of finishing beef cattle. Conclusions: Supplementing crude corn oil at 1.5% of diet DM does not affect growth performance or reduce CH4 emissions of finishing beef cattle; indicating there may be a minimum threshold of fat inclusion to elicit significant changes.</li> <li>Methionine supply during mid-gestation modulates the bovine placental mTOR pathway, nutrient transporters, and offspring birth weight in a sex-specific manner. Conclusions: Increasing the supply of methionine to beef heifers during mid-gestation can modulate placental nutrient transport and fetal growth in a sex-dependent manner and that these effects are mediated, at least in part, by the mTOR pathway.</li> </ul>  Objective 2. Develop management practices tailored to Bos indicus-influenced cattle reared in subtropical and tropical regions of the US Georgia <ul> <li>Computer vision analysis of luteal color Doppler ultrasonography for early and automated pregnancy diagnosis in Bos taurus beef cows. Conclusions: In conclusion, deep learning algorithms can effectively predict pregnancy status using color Doppler ultrasonography earlier than industry-standard methods, with performance comparable to that of trained personnel.</li> </ul>  Louisiana  <ul> <li>Effect of provision of artificial shade and chromium supplementation during mid and late gestation to fall-calving beef cows under heat stress conditions: performance, immunocompetence and physiological responses of cow-calf pairs. Conclusions: Shade improved dam performance, thermotolerance and calf vigor, immunity and growth. Chromium enhanced pre- and postpartum body weight, but only when shade was provided. Chromium supplementation did not improve thermotolerance but enhanced physiological responses.</li> <li>Electrolyte supplementation for gestating beef cows under heat stress conditions: cow-calf performance, thermotolerance and physiological responses. Conclusions: Electrolyte supplementation improved hydration status and acid-base balance but this did not translate into improvements in performance.</li> </ul>  Mississippi <ul> <li> Impact of maternal behavior at calving on productivity in beef cows. Conclusions: Additional work is needed to refine ethograms. Collection of lifetime temperament parameters and productive outcomes is needed. Dams with increased aggression at the time of calving wean lighter calves, whereas dams with no aggression at the time of calving wean fewer calves.</li> <li>Impact of postweaning stair-step nutritional regimen in beef heifers on reproductive development and productivity as primiparous cows. Conclusions: Ongoing</li> <li>Impact of ultra-high stocking density grazing system on cattle behavior and productivity. Conclusions: Ongoing</li> <li>Impact of fecal egg count during gestation on productive outcomes in beef cattle. Conclusions: Elevated parasite load in beef cattle during gestation impacts cow and offspring productivity.</li> <li>Evaluating preference and consumption patterns of chlortetracycline mineral supplement in commercial beef cows. Conclusions: </li> <li>Puberty Attainment in Beef Heifers Consuming Molasses-Based vs. Dry Supplements. Conclusions: Ongoing.</li> </ul>  Virginia <ul> <li> Narasin Supplementation Enhances Growth Performance in Grazing Cattle. Conclusions: Under similar forage quality and availability, narasin supplementation improves animal performance without altering the intake of protein or mineral supplements.</li> <li>Effects of a Bacillus-based direct-fed microbial on digestibility, ruminal in situ nutrient disappearance, microbiome, and fermentation parameters in forage-fed beef cattle. Conclusions: Supplementation with a Bacillus-based DFM to rumen-fistulated cows consuming a medium-quality forage-based diet increased forage intake, DM and NDF ruminal in situ disappearance, total-tract apparent digestibility of DM and CP, amount of total-tract nutrients digested, ruminal pH at 16 h and 20 h after feeding and tended to increase plasma concentration of urea-N.</li> </ul>   Florida <ul> <li> Maternal supplementation of a Bacillus-based direct-fed microbials altered the cow prepartum plasma metabolome and the calf plasma metabolome before and after vaccination. Conclusion: Maternal supplementation of a Bacillus-based DFM modified the maternal prepartum metabolome and the calf metabolome before, during, and after a vaccination-induced inflammatory response.</li> <li>Year-round supplementation of direct-fed microbials to cow-calf pairs and its effects on maternal and offspring productive performance. Conclusion: Year-round supplementation of Bacillus-based DFM via a mineral delivery method improved cow BCS during breeding and enhanced calf preweaning growth. Although no reproductive benefits were observed for cows and their heifers, DFM supplementation increased post-weaning immune response and carcass quality of steers.</li> <li>Maternal supplementation with Bacillus-based direct-fed microbials altered the maternal and offspring fecal microbiome. Conclusion: Exclusive maternal supplementation with a Bacillus-based DFM during gestation and early lactation modulated the fecal microbiota of both heifers and their offspring.</li> <li>Stocking method effects on Bos indicus influenced cows grazing subtropical rangelands. Conclusions: Grazing method did not affect forage characteristics and animal performance of mature cows grazing rangelands, but it may be a management practice to improve grazing distribution in rangelands in Florida.</li> <li>Evaluation of new warm-season perennial grass cultivars propagated by seed in Florida. Conclusions: Spain is a promising warm-season perennial to be used in South Florida due to superior production, nutritive value, and persistence.</li> </ul>

Publications

Peer-reviewed articles <ol> <li>Burato, S., N. W. Dias, S. Pancini, L. Melo-Gonçalves, M. B. Walker, D. D. Henry, F. M. Ciriaco, K. M. Harvey, V. R. G. Mercadante, and P. L. P. Fontes. 2025. Impact of early resynchronization in combination with color Doppler ultrasonography on cumulative pregnancy rates and calving distribution in postpartum beef cows. Reprod. Sci. 282:108020. <a href="https://doi.org/10.1016/j.anireprosci.2025.108020">https://doi.org/10.1016/j.anireprosci.2025.108020</a>.</li> <li>A. Tariq, L. M. Goncalves, T. S. Maia, Q. A. Hoorn, D. B. Davis, S. M. Zoca, R. L. Stewart Jr., P. L. P. Fontes, J. J. Bromfield. Overnutrition of young bulls delays in vitro embryonic development and decreases embryo quality. Biol. Reprod. doi.org/10.1093/biolre/ioaf216</li> <li>R.M. Swanson, M.A. Arick, L.M. Gonçalves, D.B. Davis&Dagger;, R. L. Stewart Jr., P.L.P. Fontes, and C.O. Lemley. 2025. Seminal plasma from bulls with divergent plane of nutrition minimally alters bovine uterine endometrial epithelial cell gene expression in vitro. J. Anim. Sci. doi:10.1093/jas/skaf267.</li> <li>M. Goncalves, S. Burato, L. Neira, K. Harvey, S.M. Zoca, V.R.G. Mercadante, P.L.P. Fontes. 2025. Impact of late embryonic and early fetal mortality on productivity of beef cows. Trans. Anim. Sci. 9:txaf071. doi.org/10.1093/tas/txaf071.</li> <li>L. M. Goncalves, L. P. Fontes, A. A. C. Alves. 2025. Computer vision analysis of luteal color Doppler imaging may support automated early pregnancy diagnosis in beef cattle. J. Anim. Sci. 103:skaf166. doi: 10.1093/jas/skaf166.</li> <li>Smith, M. S., J. O. S. Aguilar, G. Nyhuis, F. M. Ciriaco, S. M. Zoca, L. Strickland, R. L. Stewart Jr., J. D. Duggin, and L. P. Fontes. 2025. Relationship between phenotypic subcutaneous backfat thickness and spermiogram outcomes in young beef bulls. 2025. Trans. Anim. Sci. 9: txaf039. doi:10.1093/tas/txaf039.</li> <li>Oosthuizen, L. M. Goncalves, S. Burato, M. Smith, K. M. Harvey G. C. Lamb, and Pedro L. P. Fontes. 2025. Effect of different GnRH compounds on fertility outcomes in synchronized and presynchronized beef cows. Front. Anim. Sci. 6:1502984. doi: 10.3389/fanim.2025.1502984</li> <li>P. L. P. Fontes, J. Bromfield, G. C. Lamb, K. G. Pohler. 2025. Impact of paternal high-energy diet on semen quality and embryo development in cattle. Reprod. Fertil. 6: e240082. doi:10.1530/RAF-24-0082.</li> <li>L. M. Goncalves, S. Burato, M. B. Walker, M. Smith, L. Neira, G. Clements, S. Morgan, R. F. Cooke, and P. L. P. Fontes. 2025. Impact of luteal blood perfusion and estrus expression on pregnancy rates of Bos taurus embryo recipients exposed to fixed-time embryo transfer. Anim Reprod. Sci. 274:107764. doi:10.1016/j.anireprosci.2025.107764</li> <li>G. A. Pessoa, P. L. P. Fontes, I. C. Junior, F. L. Junior, N. Alves, O. G. de Sa Filho, and J. L. M. Vasconcelos. 2025. Fertility of Bos taurus beef cows submitted to fixed-time artificial insemination protocols with intravaginal inserts containing different amounts of progesterone. Theriogenology. 234: 73-82. doi:10.1016/j.theriogenology.2024.12.003</li> <li>. Burato, M. B. Walker, L. M. Goncalves, N. Oosthuizen, S. M. Zoca, D. D. Henry, F. M. Ciriaco, J. Ranches, P. L. P. Fontes. 2024. Influence of early progesterone removal on follicular development, expression of estrus, and pregnancy rates in presynchronized postpartum beef cows. Anim. Reprod. Sci. 267:107541. doi.org/10.1016/j.anireprosci.2024.107541</li> <li>Ferreira, M.L., Vedovatto, M., Siqueira, I.P., Marcon, H., dos Reis, B.R., Silva Junior, R.G., Chinaglia, J.V., Renno, L.N. & Edwards, A.K., 2025. Effects of shade and chromium propionate supplementation during gestation of beef cows under heat stress: cow thermotolerance, cow–calf performance and physiological responses. Journal of Animal Science, 103, p.skaf280. <a href="https://doi.org/10.1093/jas/skaf280">https://doi.org/10.1093/jas/skaf280</a>.</li> <li>Gonçalves, J. C. C., Albuquerque, J. M., Almeida, E. R. d., Coelho, L. C., Godinho, J. A. M., Toma, L. Y. P., Ferreira, M. F. L., Rennó, L. N., Sampaio, C. B., Detmann, E., & Lopes, S. A. Effects of Dried Distillers Grains in Supplements for Beef Cows During Late Gestation on Cow–Calf Performance and Metabolic Status. Animals, 2025, 15(12), 1698. https://doi.org/10.3390/ani15121698</li> <li>Silva, L.G.D., Vedovatto, M., Ranches, J., Martins, E.C., Ferreira, M.F., Lima, E.D.A., Ferreira, L.C.L., Reis, W.V.A.D. and Franco, G.L., 2025. Impact of parenteral copper and zinc administration on reproduction, inflammation, and antioxidant responses of Bos indicus beef heifers. Animals, 15(19), p.2926. <a href="https://doi.org/10.3390/ani15192926">https://doi.org/10.3390/ani15192926</a></li> <li>Reis, B.R., Silva, G.; Marcon, H., Santos, A., Ranches, J., Ferreira, M.L., Vedovatto, M. Effects of trace mineral injection at weaning on growth, inflammatory and immune responses in Bos indicus-influenced beef steers with or without growth-promoting implants. Translational Animal Science 2025, txaf132, ttps://doi.org/10.1093/tas/txaf132</li> <li>Mussalafo, D.E., Vedovatto, M., Santos, A.R., Oliveira, D.M., Sterza, F.A., Santos, M., Batista, H.B., Garcia, J.G. and Souza, A.R., 2025. Use of restricted nursing and a bovine appeasing substance on the welfare, growth performance, and response to vaccination of beef calves at weaning. Animal Research and One Health. <a href="https://doi.org/10.1002/aro2.70031">https://doi.org/10.1002/aro2.70031</a>.</li> <li>Santos, M., Oliveira, D.M.D., de Souza, M.R., Almeida, G.B.D., Santos, A.R.D., Belmonte, J.C.C., Melo-Sterza, F.D.A., Ferraz, A.L.J. and Vedovatto, M., 2025. Impact of two-stage weaning and bovine-appeasing substance on growth, temperament, pasture behavior, and immune system of Nellore calves. Animals, 15(11), p.1640. <a href="https://doi.org/10.3390/ani15111640">https://doi.org/10.3390/ani15111640</a>.</li> <li>Canuto, N.G.D., Fernandes, H.J., Itavo, L.C.V., Vedovatto, M., de Oliveira, D.M., da Silva, T.H.R., da Silva, A.P. and da Silva, A.G., 2025. Natural feed additives in high-concentrate diets fed to Angus × Nellore finishing steers. Animal Feed Science and Technology, 321, p.116233. <a href="https://doi.org/10.1016/j.anifeedsci.2025.116233">https://doi.org/10.1016/j.anifeedsci.2025.116233</a>.</li> <li>Ferreira, I.M., Mantovani, H.C., Vedovatto, M., Cardoso, A.S., Rodrigues, A.A., Homem, B.G.C., de Abreu, M.J.I., Rodrigues, A.N., Batista, L.C., de Oliveira, J.S. and Viquez-Umana, F.L., 2025. Impact of dietary exogenous feed enzymes on performance, nutrient digestibility, and ruminal fermentation parameters in beef cattle: a meta-analysis. animal, 19(5), p.101481. <a href="https://doi.org/10.1016/j.animal.2025.101481">https://doi.org/10.1016/j.animal.2025.101481</a>.</li> <li>Niwa, M.V.G., Ítavo, L.C.V., Brandão Ferreira Ítavo, C.C., de Nadai Bonin Gomes, M., Longhini, V.Z., Cunha, C.S., Dias, A.M., dos Santos Difante, G., Vedovatto, M., da Costa Gomes, R. and Gurgel, A.L.C., 2025. Fiber sources on performance, carcass, and meat characteristics of feedlot Nellore young bulls. Journal of Animal Physiology and Animal Nutrition, 109(2), pp.551-559. <a href="https://doi.org/10.1111/jpn.14072">https://doi.org/10.1111/jpn.14072</a>.</li> <li>do Carmo, J.S., da Silva, A.G., Ferreira, L.C.L., da Silva, L.G., Vedovatto, M., de Andrade Melo Sterza, F., da Silva, A.F., Trannin, R.B., da Silva Júnior, J.M., Ítavo, L.C.V. and Fernandes, H.J., 2025. Evaluation of strategies to maximize fixed-time artificial insemination efficiency in Bos taurus indicus females in the Brazilian savannah environment. Tropical Animal Health and Production, 57(6), p.276. <a href="https://doi.org/10.1007/s11250-025-04526-0">https://doi.org/10.1007/s11250-025-04526-0</a>.</li> <li>Gonçalves, A.G., Sasa, A., Vedovatto, M., Santos, A.R.D., Oliveira, P.R.O., Rohod, R.V., Belmonte, J.C.C., da Silva, E.R.F., Simões, A.R.P., Ferraz, A.L.J. and Oliveira, M.V.M., 2025. Breed and sex class affect the intake, performance, and meat quality of Pantaneiro and Santa Inês lambs but do not alter carcass patterns. Animal Production Science, 65(10). <a href="https://doi.org/10.1071/AN24250">https://doi.org/10.1071/AN24250</a>.</li> <li>Queiroz, M.C., Santos, A.R., Vedovatto, M., Ferraz, A.L., Bastianel, E.R., Oliveira, M.V., Arruda, R.M. and Oliveira, D.M., 2025. Ingestive behavior and body development of backgrounded heifers from three genotypes in the Brazilian Pantanal. Animal Research and One Health. <a href="https://doi.org/10.1002/aro2.70004">https://doi.org/10.1002/aro2.70004</a>.</li> <li>Franco, G.L., Souza, J.G.D., Martha, G.D.O.D., Faria, F.J.C., Vedovatto, M., Ítavo, L.C.V., D’Oliveira, M.C. and Moreira, A.P., 2025. Black sucupira seed oil (Bowdichia virgilioides Kunth) as a growth-promoting additive for beef cattle. Brazilian Journal of Animal Science, 26, p.e20240012. <a href="https://doi.org/10.1590/20250012">https://doi.org/10.1590/20250012</a></li> <li>Harvey, K. M., R. F. Cooke, and B. L. Laubinger. 2025. Impacts of stress on growth and reproductive development of beef heifers. Anim. Front. doi.org/10.1093/af.vfaf013.</li> <li>Harvey, K. M., R. F. Cooke, and W. I. Jumper. 2025. Vaccination against respiratory pathogens during the cow-calf phase: Impacts on productive and health responses of feedlot cattle. Appl. Anim. Sci. doi.org/10.15232/aas.2024-02592.</li> <li>Limede, A. C., Marques, R. S., Cidrini, F. A. A., Souza, G. A. P., Santos, E. F., Wu, X., De Souza, I. S., Qualharello, T., Cooke, R. F., & Chen, C. P. J. 2025. Using audio-visual monitoring to evaluate immune and behavioral indicators to lipopolysaccharide challenge in beef cattle. Anim. Sci. skaf345. <a href="https://doi.org/10.1093/jas/skaf345">https://doi.org/10.1093/jas/skaf345</a></li> <li>Polizel, D. M., Marques, R. S., Limede, A. C., Cidrini, F. A. A., Gonçalves, J. R. S., Carvalho, P. H. V., & Pires, A. V. 2025. Narasin supplementation enhances growth performance in grazing cattle. 15:1939. <a href="https://doi.org/10.3390/ani15131939">https://doi.org/10.3390/ani15131939</a></li> <li>Cappellozza, B. I., Cooke, R. F., Amaral, R. C., Bach, A., Engle, T. E., Ferraretto, L. F., Marques, R. S., Miller, A. C., Moriel, P., & Vendramini, J. M. B. 2025. Ruminant nutrition symposium: Novel microbial solutions to optimize production efficiency in beef and dairy systems. J. Anim. Sci. 103:skaf165. <a href="https://doi.org/10.1093/jas/skaf165">https://doi.org/10.1093/jas/skaf165</a></li> <li>Brenner, M. A., Marques, R. S., Posbergh, C. J., Zezeski, A. L., Geary, T. W., & McCoski, S. R. 2025. Maternal injectable mineral administration effects on calf growth and reproductive parameters. J. Anim. Sci. 15:330. <a href="https://doi.org/10.3390/ani15030330">https://doi.org/10.3390/ani15030330</a></li> <li>Sardinha, L. A., Marques, R. S., Limede, A. C., Soares, L. C. B., Cidrini, F. A. A., Toledo, A. F., Gasparina, J. M., de Assis, R. G., Goulart, R. S., Ferreira, E. M., Pires, A. V., & Polizel, D. M. 2025. Levels of physically effective neutral detergent fiber from forage and narasin inclusion: Performance, carcass traits, meat quality, gastrointestinal fermentation, and rumen histology in feedlot lambs. Anim. Sci. 103:skaf235. <a href="https://doi.org/10.1093/jas/skaf235">https://doi.org/10.1093/jas/skaf235</a></li> <li>Limede, A. C., Marques, R. S., Cidrini, F. A. A., Cruz, V. A., Queiroz, A. C. M., Cidrini, I. A., Farias, I. M. S. A., Rodrigues, A. N., Scholljegerdes, E. J., Souza, I. S., Cooke, R. F., Gresse, R., Vestergaard, G., & Cappellozza, B. I. 2025. Effects of a Bacillus-based direct-fed microbial on digestibility, ruminal in situ nutrient disappearance, microbiome, and fermentation parameters in forage-fed beef cattle. J. Anim. Sci. 103:skaf093. <a href="https://doi.org/10.1093/jas/skaf093">https://doi.org/10.1093/jas/skaf093</a></li> <li>Cruz, V. A., Marques, R. S., Kvamme, K., Limede, A. C., Cidrini, F. A. A., Cidrini, I. A., Nascimento, K. S., Harvey, K. M., Cordero Llarena, J. F., & Cooke, R. F. 2025. Effects of omega-3 polyunsaturated fatty acid supplementation to first-calf beef heifers during late gestation on offspring physiology and performance. Anim. Sci. 103:skaf091. <a href="https://doi.org/10.1093/jas/skaf091">https://doi.org/10.1093/jas/skaf091</a></li> <li>Cruz, V. A., S. Marques, K. Kvamme, A. C. Limede, F. A. A. Cidrini, I. A. Cidrini, K. S. Nascimento, S. J. Mackey, R. F. Cooke, C. Farmer, and J. Heldt. 2025. Effects of maternal Cu, Mn, and Zn supplementation from different sources on physiological and productive responses of cows and their offspring. J. Anim. Sci. skae391. <a href="https://doi.org/10.1093/jas/skae391">https://doi.org/10.1093/jas/skae391</a></li> <li>Sousa, L. M., V. S. Izquierdo, J. M. B. Vendramini, B. I. Cappellozza, and Moriel. 2025. Maternal supplementation of Bacillus-based direct-fed microbials alters the maternal and offspring fecal microbiome. Trans. Anim. Sci. Accepted Oct 17, 2025.</li> <li>Moriel, P., V. S. Izquierdo, C. C. Brauner, L. M. Sousa, J. G. Berwanger, K. B. Cardoso, C. A. Crawford, J. H. J. Bittar, M. H. Poore, R. F. Cooke, J. M. B. Vendramini, and B. I. Cappellozza. 2025. Year-round supplementation of direct-fed microbials to cow-calf pairs and its effects on maternal and offspring productive performance. Trans. Anim. Sci. txaf137. <a href="https://doi.org/10.1093/tas/txaf137">doi:10.1093/tas/txaf137</a></li> <li>Izquierdo, V. S., J. Vendramini, N. Ashrafi, R. A. Mimi, S. F. Graham, A. Gonella-Diaza, and Moriel. 2025. Heat stress mitigation during prepartum and postpartum altered the plasma metabolome in Bos indicus-influenced cow-calf pairs. J. Anim. Sci. 103:skaf195. <a href="https://doi.org/10.1093/jas/skaf195">doi:10.1093/jas/skaf195</a></li> <li>Izquierdo, V. S., B. I. Cappellozza, N. Ashrafi, R. A. Mimi, S. F. Graham, J. M. B. Vendramini, A. Gonella-Diaza, and Moriel. 2025. Maternal pre- and post-partum supplementation of a Bacillus-based DFM altered the cow prepartum plasma metabolome and the calf plasma metabolome before and after vaccination. J. Anim. Sci. 103:skaf135. DOI: 10.1093/jas/skaf135</li> <li>Russo, G. H., G. L. B. Tinoco, M. R. Vicari, R. S. Nogueira, P. L. G. Melo, J. A. Torrencilhas, R. A. Curi, Moriel, W. A. Baldassini, L. A. L. Chardulo, and G. L. Pereira. 2025. Gene co-expression networks analysis for energy metabolism shows a positive effect of concentrate supplementation in early weaned Nellore calves. Front. Anim. Sci. 6:1533043. <a href="https://doi.org/10.3389/fanim.2025.1533043">doi:10.3389/fanim.2025.1533043</a></li> <li>Souza, I. R. T., Moriel, T. C. Santos, A. V. de Miranda, G. R. R. Monar, M. E. Rezende, K. V. Z. Augusto, M. A. F. Porcionato, M. Victoria Sanz-Fernandez, I. S. Souza, S. J. Mackey, R. F. Cooke, J. V. Vendramini, D. B. Araujo, and J. L. M. Vasconcelos. 2025. Breed and trace mineral source influence the performance of beef heifers during periods of nutrient restriction and grazing forage at early vegetative stage. J. Anim. Sci. 103:skaf019. <a href="https://doi.org/10.1093/jas/skaf019">doi:10.1093/jas/skaf019</a></li> <li>Bennett, A., C. C. Rocha, A. Waheed, F. S. Mesquita, T. S. Maia, M. Lane-Jackson Haimon, Q. A. Hoorn, M. Sagheer, C. J. Cuellar, H. Sultana, O. A. Ojeda-Rojas, R. L. Krisher, M. Rubessa, K. G. Pohler, P. J. Hansen, Moriel, R. C. Chebel, and M. Binelli. 2025. Assessment and prediction of embryo survival in fertility-classified beef cows. Theriogenology. 117560. <a href="https://doi.org/10.1016/j.theriogenology.2025.117560">doi:10.1016/j.theriogenology.2025.117560</a>.</li> <li>Rocha, C. C., A. B. Montevecchio, A. Bennett, A. Waheed, M. Mazziotta, T. S. Maia, M. L. Haimon, Q. Hoorn, M. Sagheer, C. Cuellar, O. A. Ojeda-Rojas, R. L. Krisher, M. Rubessa, K. G. Pohler, P. J. Hansen, Moriel, R. C. Chebel, and M. Binelli. 2025. Relationships between variables given by an activity monitoring device and ovarian, uterine, hormonal, and pregnancy variables in beef cows. Theriog. 235:64-74. <a href="https://doi.org/10.1016/j.theriogenology.2025.01.001">doi:10.1016/j.theriogenology.2025.01.001</a></li> <li>Lazarin, J.V., J.M.B. Vendramini, M.L. Silveira, P. Moriel, L.E. Sollenberger, J.C.B. Dubeux Jr., H.M.S. Silva, N.M. Lage, and J. Garzon. Phosphorus and nitrogen fertilization effects on limpograss forage characteristics toot-stem base mass, and tissue phosphorus concentration. Plant. Nutr. (In press)Castillo, M., T. Griggs, M. Digman, J. Vendramini, J. Dubeux, and C. Pedreira. 2025. Reporting forage nutritive value using near-infrared reflectance spectroscopy. Crop Sci. 65:1:7 <a href="https://doi.org/10.1002/csc2.70063">https://doi.org/10.1002/csc2.70063</a>.</li> <li>Sabrina T Amorim, Nedenia Bonvino Stafuzza, Daniel Cardona Cifuentes, João G N Moraes, Barbara Roqueto dos Reis, Riley Messmann, Luis Camaripano, Fernando Baldi, Genomic study for pregnancy loss in Brahman cattle, Journal of Animal Science, Volume 103, 2025, skaf326, <a href="https://doi.org/10.1093/jas/skaf326" data-google-interstitial="false">https://doi.org/10.1093/jas/skaf326</a></li> <li>Cifuentes D.C., Neira J.D.R., Albuquerque L.G, Espigolan R., Gonzalez-Herrera L.G, Amorim S.T, Lopez-Correa R.D., Aguilar I., Baldi F. Influence of variance component estimates on genomic predictions for growth and reproductive-related traits in Nellore cattle. Journal of Animal Breeding and Genetics.<a class="epub-doi" href="https://doi.org/10.1111/jbg.12900">doi.org/10.1111/jbg.12900</a></li> <li>Morales A.G., Amorim S.T., Lizana C., Pulido R.G., Hanigan M.D., Cockrum R.R., Morota G. Incorporating heterosis effects enhances genetic evaluations for milk production and functional traits in Chilean crossbred dairy cows. Journal of Dairy Science.<a class="anchor doi anchor-primary" title="Persistent link using digital object identifier" href="https://doi.org/10.3168/jds.2025-26445" target="_blank" rel="noreferrer noopener">https://doi.org/10.3168/jds.2025-26445</a></li> </ol> Oral and Poster Abstracts <ol> <li>Fontes, P., D. B. Davis, L. M. Goncalves, M. S. Smith, S. Burato, A. M. Stelzleni, F. L. Fluharty, L. Stewart, R. F. Cooke, J. J. Bromfield, A. Keller, K. Kerns, and S. M. Zoca. 2025. Reproductive consequences of young sire overnutrition in the bovine: I) Systemic metabolic and endocrine profile. J. Anim. Sci. 103(Suppl. 3):210–211. https://doi.org/10.1093/jas/skaf300.249</li> <li>Fontes, P., D. B. Davis, L. M. Goncalves, M. S. Smith, S. Burato, A. M. Stelzleni, F. L. Fluharty, L. Stewart, R. F. Cooke, J. J. Bromfield, A. Keller, K. Kerns, and S. M. Zoca. 2025. Reproductive consequences of young sire overnutrition in the bovine: I) Effects on semen quality and functional traits. J. Anim. Sci. 103(Suppl. 3):210–211. https://doi.org/10.1093/jas/skaf300.249</li> <li>Goncalves, L. M., S. Burato, M. S. Smith, A. Tariq, S. M. Zoca, L. Stewart, J. J. Bromfield, and P. Fontes. 2025. Impact of sire overnutrition on preimplantation conceptus transcriptome profile in the bovine. J. Anim. Sci. 103(Suppl. 3):220–221. https://doi.org/10.1093/jas/skaf300.259</li> <li>Zoca, S. M., G. A. Perry, and P. Fontes. 2025. Bull management: From sperm quality to herd fertility. J. Anim. Sci. 103(Suppl. 3):225–226. https://doi.org/10.1093/jas/skaf300.266</li> <li>Stevenson, C. K., M. M. Dycus, G. A. Araujo, N. Arias, A. H. Rooks, A. L. Zezeski, M. A. Ogg, T. Callaway, P. Fontes, T. W. Geary, and J. M. Lourenco. 2025. The association of the seminal microbiome to flow cytometry assays and breeding soundness exam metrics in yearling bulls. J. Anim. Sci. 103(Suppl. 3):211–212. https://doi.org/10.1093/jas/skaf300.250</li> <li>Smith, M. S., L. M. Goncalves, S. Burato, K. B. Marchant, R. Palomares, S. M. Zoca, and P. Fontes. 2025. Assessment of perceived knowledge gain on bovine reproductive ultrasonography among veterinarians and students following hands-on training. J. Anim. Sci. 103(Suppl. 3):247–248. https://doi.org/10.1093/jas/skaf300.289</li> <li>Reynolds, S., T. McNair, P. L. P. Fontes, and L. Stewart. 2025. Bull Breeding Soundness Exam Haul-In Days: an Extension program to increase the adaption of a best management practice. J. Anim. Sci.</li> <li>Schwartz, A., D. Stock, S. Tastad, T. Vidlund, L. M. Goncalves, A. F. Sales, P. H. Yamada, V. R. G. Mercadante, P. L. P. Fontes, S. Johnson, N. W. Dias. 2025. Evaluating the relationship between anogenital distance and fertility in beef females. J. Anim. Sci.</li> <li>M. Aizpuru, T. N. Andrews, C. D. Bedke, J. A. Cooper, K. J. Richardson, R. L. Dunlap, S. H. Cox, R. A. Cushman, A. P. Snider, P. L. P. Fontes, M. S. Smith, E. Mesen, A. F. Summers, and E. J. Scholljegerdes. 2025. Influence of source and level of ruminal undegradable protein on antral follicle count and circulating concentrations of urea, glucose, and insulin in beef heifers grazing native rangelands. 2025. J. Anim. Sci. </li> <li>R. Henington, T.N. Andrews, C.D. Bedke, J.A. Cooper, K.J. Richardson, R.A. Cushman, A.P. Snider, P.L.P. Fontes, M.S. Smith , A.F. Summers, and E.J. Scholljegerdes. 2025. Effects of source and level of ruminal undegradable protein on serum glucose, insulin, and urea nitrogen in developing beef heifers fed in a dry-lot. J. Anim. Sci.</li> <li>Goncalves, L.M., Chiconato, G. M. R., Burato, S., Alves, A. A. C., Fontes, P. L. P. 2025. Relationship between human and computer vision-based assessments of luteal blood perfusion in embryo transfer recipients. Reprod. Fertil. Dev </li> <li>Credille, B.C., J. Duggin, A.L. Jones, G. Nyhus, P.L.P. Fontes, R. L. Stewart, and R.D. Berghaus. 2025. Maturity, average daily gain, and body weight can be used to predict reproductive tract maturity score in beef replacement heifers consigned to a heifer development program in the southeastern United States. AABP Proceedings. 57:215. doi:10.21423/aabppro20249164.</li> <li>S. Smith, J. O. S. Aguilar, G. Nyhuis, F. M. Ciriaco, R. L. Stewart Jr., J. D. Duggin, and P. L. P. Fontes. 2024. Evaluating the relationship between subcutaneous backfat thickness and sperm morphology in young beef bulls. J. Anim. Sci. Suppl. 3. 102:528-529. doi:10.1093/jas/skae234.594.</li> <li>M. Goncalves, S. Burato, M. B. Walker, G. Clements, S. Morgan, L. Neira, P. L. P. Fontes. 2024. Impact of luteal blood perfusion and estrus expression on pregnancy rates of beef cows exposed to embryo transfer. J. Anim. Sci. Suppl. 3. 102:267-268. doi:10.1093/jas/skae234.308.</li> <li>L. P. Fontes. 2024. Contributions of sire diet to pregnancy establishment in cattle. J. Anim. Sci. Suppl. 3. 102:100. doi:10.1093/jas/skae234.116.</li> <li>L. P. Fontes. 2024. Trace minerals to improve bull fertility. J. Anim. Sci. Suppl. Suppl. 3. 102:82-83. doi:10.1093/jas/skae234.092.</li> <li>A. Pessoa, I. C. Junior, J. L. M. Vasconcelos, F. L. Junior, N. Alves, O. G. Sa Filho, and P. L. P. Fontes. 2024. Fertility of postpartum Bos taurus beef cows receiving estradiol/progesterone-based fixed-time artificial insemination protocols with intravaginal devices containing 0.5 or 1.9 g of progesterone. World Buiatrics Congress.</li> <li>M. Goncalves, P. L. P. Fontes, and A. C. Alves. 2024. Use of deep learning algorithms to evaluate luteal color Doppler ultrasonography as an alternative method of pregnancy diagnosis in cattle. 11th European Conference on Precision Livestock Farming (ECPLF 2024).</li> <li>Marcon, H., Diniz, W.J., Edwards, A.K., Santos, M., Chinaglia, J., Leite, G., Reis, B.R.D., Ferreira, M.F.L., Siqueira, G.R., Banerjee, P. and Brown, T.C., Vedovatto, M., 2025. Impact of late-gestation chromium propionate supplementation of Brangus cows on growth and liver transcriptomics of the offspring. Journal of Animal Science, 103(Supplement_2), pp.29-29. <a href="https://doi.org/10.1093/jas/skaf170.035">https://doi.org/10.1093/jas/skaf170.035</a></li> <li>Gomes, R., Siqueira, I., Marcon, H., Chinaglia, J., Vedovatto, M., Reis, B.R.D., Edwards, A.K. and Ferreira, M.F.L., 2025. Effects of artificial shade and chromium supplementation during mid and late gestation of beef cows under heat stress: cow performance and thermotolerance. Journal of Animal Science, 103(Supplement_2), pp.85-85. <a href="https://doi.org/10.1093/jas/skaf170.098">https://doi.org/10.1093/jas/skaf170.098</a>.</li> <li>Reis, B., Silva, G., Marcon, H., Mazeres, K., Ferreira, M.L., Amorim, S., Vedovatto, M., Beline, M. Impact of shade and chromium supplementation on performance and blood metabolites of finishing steers under heat stress conditions. Journal of Animal Science, Volume 103, Issue Supplement_3, October 2025, Pages 588–589, <a href="https://doi.org/10.1093/jas/skaf300.665">https://doi.org/10.1093/jas/skaf300.665</a></li> <li>Santos, A. R., Ferri, E., Torres, J., Ferreira, M.F., Rezamand, P., Skibiel, A., Wollstein, K., Cruickshank, , Ranches, J. Effects of short-term simulated wildfire smoke exposure on beef heifer blood markers., Journal of Animal Science, Volume 103, Issue Supplement_3, October 2025, Pages 53–54, <a href="https://doi.org/10.1093/jas/skaf300.068">https://doi.org/10.1093/jas/skaf300.068</a></li> <li>Edwards, A.K., Vedovatto, M., Gurie, J., Marcon, H., Scaglia, G., Fannin, J.M., Guidry, K.M. and Gentry, G.T., 2025. Effect of adopting multiple management technologies on cattle performance in a small grazing beef cow-calf system. Journal of Animal Science, 103(Supplement_2), pp.75-76. <a href="https://doi.org/10.1093/jas/skaf170.088">https://doi.org/10.1093/jas/skaf170.088</a>.</li> <li>Oliveira, E. F., Santos, A. C. R., Ramalho, A. L., Santos, C. M., Ferreira, M. F., Heldt, J. S., Farmer, C. G., Ranches, J. Effects of vitamin B complex supplementation on blood metabolites and performance of weaned beef calves during a 42-day preconditioning program., Journal of Animal Science, Volume 103, Issue Supplement_3, October 2025, Pages 270–271, <a href="https://doi.org/10.1093/jas/skaf300.315">https://doi.org/10.1093/jas/skaf300.315</a></li> <li> M. F., Siqueira, I., Gomes, R., Marcon, H., Vedovatto, M., Reis, B., Renno, L. Edwards, A. Changes in blood metabolic profile of cows with and without access to shade or chromium supplementation during gestation under heat stress conditions. Journal of Animal Science103(Supplement_3):206-207 doi:10.1093/jas/skaf300.24</li> <li>Siqueira, I.P., Gomes, R., Marcon, H., Chinaglia, J., Vedovatto, M., Reis, B.R.D., Edwards, A.K. and Ferreira, M.F.L., 2025. Effects of artificial shade and chromium supplementation during mid and late gestation of beef cows under heat stress: offspring performance, physiological responses and immunity at birth. Journal of Animal Science, 103(Supplement_2), pp.86-86. <a href="https://doi.org/10.1093/jas/skaf170.099">https://doi.org/10.1093/jas/skaf170.099</a>.</li> <li>Silva, G., Marcon, H., Ferreira, M.F.L., Ranches, J., Vedovatto, M. and Reis, B.R.D., 2025. Effects of trace mineral injection at weaning on growth, inflammatory and immune responses in implanted and non-implanted beef calves. Journal of Animal Science, 103(Supplement_2), pp.68-68. <a href="https://doi.org/10.1093/jas/skaf170.080">https://doi.org/10.1093/jas/skaf170.080</a></li> <li>Laubinger, B., M. Harvey, M. McKnight, A. McGehee, C. Miles, J. Rimmer, M. Drewery, T. Winton, C. Lemley, R. Cooke, and B. Karisch. 2025. Impact of postweaning stair-step nutritional regimen in beef heifers on reproductive development and productivity as primiparous cows. 2025. Applied Reproduction Strategies in Beef Cattle.</li> <li>Winton, T. S., J. Welborn, J. Basinger, M. McKnight, A. McGehee, B. Laubinger, C. Miles, J. Rimmer, M. Harvey, and I. Jumper. Effect of anthelmintic treatment on performance and fecal egg count in a Mississippi cow-calf herd. 2025 Veterinary Medicine Research Scholar Symposium.</li> <li>Welborn, J. C., T. Winton, J. Basinger, M. McKnight, A. McGehee, B. Laubinger, C. Miles, J. Rimmer, I. Jumper, and M. Harvey. 2025. Evaluating preference and consumption patterns of chlortetracycline mineral supplement in commercial beef cows. 2025 Veterinary Medicine Research Scholar Symposium.</li> <li>Kensisky, C., M. Harvey, I. Jumper, B. Laubinger, A. McGehee, J. Rimmer, C. Miles, and A. Windham. 2025. The impact of fecal egg count during gestation on productive outcomes in beef cattle. 2025 MSU Spring Undergraduate Research Symposium.</li> <li>Merry, M., K. M. Harvey, J. Parish, B. Laubinger, A. McGehee, C. Miles, A. Windham, C. Kenisky, and J. Rawson. 2025. Analyzing spring versus fall calving in the Black Prairie region of Mississippi. 2025 MSU Spring Undergraduate Research Symposium</li> <li>Limede A, Marques R, Cidrini F, Cruz VA, Santos EF, Even F, Mercadante VRG. 2025. 102 Award Talk: Bacillus-based direct-fed microbials as a strategic tool in beef cattle production. J Anim Sci 103(Suppl 3):273. <a href="https://doi.org/10.1093/jas/skaf300.318">https://doi.org/10.1093/jas/skaf300.318</a></li> <li>Even F, Tabatabai N, Vidlund T, Mitchell C, Limede A, Cruz VA, Marques RS, Mercadante VRG. 2025. PSXI-22 Efficacy of estrus detection by an ear-tag activity monitoring system for beef females. J Anim Sci 103(Suppl 3):452–453. <a href="https://doi.org/10.1093/jas/skaf300.514">https://doi.org/10.1093/jas/skaf300.514</a></li> <li>Wu X, Limede A, Marques RS, Ferreira G, Chen CPJ. 2025. 272 Acoustic burp detection for scalable enteric methane monitoring in precision livestock farming. J Anim Sci 103(Suppl 3):239–240. <a href="https://doi.org/10.1093/jas/skaf300.280">https://doi.org/10.1093/jas/skaf300.280</a></li> <li>Limede A, Marques RS, Cidrini F, Souza G, Beline M, Even F, Mercadante VRG, Harvey KM, Cappellozza B. 2025. PSV-2 Effects of Saccharomyces cerevisiae fermentation product and Bacillus direct-fed microbials on intake and ruminal parameters of heifers fed corn silage-based diets. J Anim Sci 103(Suppl 3):396–397. <a href="https://doi.org/10.1093/jas/skaf300.454">https://doi.org/10.1093/jas/skaf300.454</a></li> <li>Limede A, Marques RS, Cidrini F, Souza G, Cruz VA, Beline M, Cappellozza B. 2025. PS-3 Effects of a Bacillus-based direct-fed microbial on feeder cattle performance during a preconditioning program. J Anim Sci 103(Suppl 2):169. <a href="https://doi.org/10.1093/jas/skaf170.190">https://doi.org/10.1093/jas/skaf170.190</a></li> <li>Limede A, Marques RS, Cidrini F, Souza G, Cruz VA, Wu X, Chen CPJ. 2025. 37 Integrating camera and microphone monitoring to evaluate immune responses and behavioral indicators in beef cattle using lipopolysaccharide administration as a model. J Anim Sci 103(Suppl 2):135. <a href="https://doi.org/10.1093/jas/skaf170.154">https://doi.org/10.1093/jas/skaf170.154</a></li> <li>Moriel, P., B. Cappellozza, V. Izquierdo, L. Sousa, C. Brauner, C. Crawford, J. Bittar, J. Vendramini. 2025. Year-round supplementation of a Bacillus-based DFM to cow-calf herds: Maternal and o!spring performance. European. Fed. Anim. Sci. Innsbruck, August25-29, 2025. pp. 658.</li> <li>Moriel, P., D. Araujo, K. Augusto, M. Porcionato, and J. Vasconcelos. E!ects of trace mineral source on performance of beef heifers during nutrient restriction and starch challenge. European. Fed. Anim. Sci. Innsbruck, August25-29, 2025. pp. 540.</li> <li>Vendramini, N. Lages Filho, J. Lazarin, M. L. Silveira, H. Da Silva, and P. Moriel. 2025. Forage species and grazing frequency e!ects on warm-season perennial grasses nutritive value and gas production. European. Fed. Anim. Sci. Innsbruck, August25-29, 2025. pp. 211.</li> <li>Crawford, C. A., V. S. Izquierdo, J. M. B. Vendramini, B. Cappellozza, and Moriel. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:umqufdRvDiIC">Bacillus-based direct-fed microbials enhanced reproductive success of Bos indicus- influenced beef heifers.</a> J. Anim. Sci. 103(3):391-392.</li> <li>Vendramini, J. M. B., M. L. Silveira, L. Sollenberger, Moriel, J. C. B. Dubeux, and M. Wallau. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:XvxMoLDsR5gC">Increasing awareness of forage management benefits for livestock production in the Southeastern US</a>. J. Anim. Sci. 103(3):142-143.</li> <li>Izquierdo, V. S., J. M. B. Vendramini, and Moriel. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:4hFrxpcac9AC">Is mitigating heat stress in beef cattle adapted to tropical/subtropical environments necessary?</a> J. Anim. Sci. 103(3):216-217.</li> <li>Sousa, L. M., Moriel, M. F. Porcionato, M. J. I. Abreu, J. A. Torrecilhas, G. Pereira, R. Curi, F. D. Resende, and G. R. Siqueira. 2025.<a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:a9-T7VOCCH8C">Effects of slaughter age on growth and carcass traits of grazing Nellore young bulls.</a> J. Anim. Sci. 103(3):75-76.</li> <li>Moriel, P., D. B. Araujo, J. M. B. Vendramini, K. Augusto, M. F. Porcionato, R. F. Cooke, and J. M. Vasconcelos. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:HtEfBTGE9r8C">Effects of breed and trace mineral source on performance of beef heifers during nutrient restriction and grazing forage at early vegetative stage.</a>. J. Anim. Sci. 103(3):77-78.</li> <li>Lazarin, J. J. M. B. Vendramini, Moriel, C. Anderson, V. S. Izquierdo, and L. M. Sousa. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:NXb4pA-qfm4C">Stair-step supplementation effects on early-weaned beef calves receiving annual ryegrass.</a> J. Anim. Sci. 103 (3):370-371.</li> <li>Vendramini, J. M. B., D. Siniscalchi, A. Miranda, Moriel, J. Lazarin, V. S. Izquierdo, and H. Silva. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:0izLItjtcgwC">Regrowth interval, forage species, and propionic acid effects on DM and NDF digestibility of warm-season perennial grass silage.</a> Journal of Animal Science 103(3):485-486.</li> <li>Cardoso, K. B., V. S. Izquierdo, J. B. Cardoso, M. W. Meireles, F. Lopes, Moriel, J. R. S. Gonçalves, R. Sartori, C. Brauner, and E. Schmitt. 2025.<a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:anf4URPfarAC"> Reproductive performance of Bos indicus cows supplemented with a low dose of rumen-protected methionine.</a> J. Anim. Sci. 103(3):644-645.</li> <li>Izquierdo, V. S., C Brauner, J. H. J Bittar, J. M. B. Vendramini, and Moriel. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:LO7wyVUgiFcC">Heat stress during gestation and post-weaning impact the performance of Bos indicus-influenced beef heifers.</a> J. Anim. Sci. 103(3):399-400.</li> <li>Izquierdo, V. S., C. Crawford, A. M. Gonella, N. Ashrafi, R. A. Mimi, S. F. Graham, J. M. B. Vendramini, and Moriel. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:_axFR9aDTf0C">Access to shade in heat stressed beef cows alters the plasma metabolome of both cows and their offspring</a>. J. Anim. Sci. 103(2):87-87</li> <li>Crawford, C., V. S. Izquierdo, J. M. B. Vendramini, B. Cappellozza, and Moriel. 2025. <a href="https://scholar.google.com/citations?view_op=view_citation&hl=en&user=WCh-ep0AAAAJ&sortby=pubdate&citation_for_view=WCh-ep0AAAAJ:86PQX7AUzd4C">Supplementation of Bacillus-based direct-fed microbials for grazing Bos indicus-influenced beef heifers</a>. J. Anim. Sci. 103(2):115-115</li> <li>Amorim S. T., Stafuzza N. B., Cifuentes D. C, Moraes J. G. N., dos Reis B. R., Messmann R, Camaripano L., and Baldi F. Genomic study for pregnancy loss in Brahman cattle. 2025 American Society of Animal Science. Hollywood, FL.</li> <li>Bis, F. C., F. E. Carvalho, C. A. Almeida, H. B. dos Reis, T. Amorim, N. B. Stafuzza, E. C. de M. Oliveira, M. P. Negreiros, J. B. S. Ferraz, and F. Baldi. Weighted single-step genome-wide association study for pregnancy loss in Nelore heifers. 2025 Brazilian Symposium of Animal Breeding (SBMA).</li> </ol> Scientific and Outreach Oral Presentations (related to Objectives 1 and 2 only) <ol> <li>Pregnancy diagnosis and cull cow management (September, 2025). In: Greene County Cattlemen's (55 participants)</li> <li>Impact of bull overnutrition during development on fertility (September, 2025). In: Applied Reproductive Strategies for Beef Cattle (245 participants)</li> <li>Estrus synchronization with natural service in beef herds (August, 2025). In: Murray County Cattlemen's Association (8 participants)</li> <li>Fetal programming in beef herds (August, 2025). In: Feedlot Bootcamp. Athens, GA (35 participants).</li> <li>Ultrasonography in embryo transfer programs (July, 2025). In: University of Tennessee - Bovine Ultrasound Training. . Spring Hill, TN (11 participants)</li> <li>Fetal aging through ultrasonography (July, 2025). In: University of Tennessee - Bovine Ultrasound Training. Spring Hill, TN  (11 participants)</li> <li>Pregnant cow dissection and fetal programming (July, 2025). In: Elite Stockman Program.  Athens, GA (26 participants)</li> <li>Benefits of a controlled breeding season and how to implement it (July, 2025). In: Walker County Cattlemen's. Chickamauga, GA (28 participants)</li> <li>Pregnancy diagnosis using blood tests (July, 2025). In: Elite Stockman Programi. Athens, GA (26 participants)</li> <li>Overview of Basic Reproductive Management Practices (May, 2025). In: Brush Country Livestock Production and Reproduction Management Program. Hebronville, Texas (22 participants)</li> <li>Ultrasonography in embryo transfer programs (March, 2025) In: UGA Bovine Ultrasound Training. Athens, GA (17 participants)</li> <li>Fetal aging through ultrasonography (March, 2025). In: UGA Bovine Ultrasound Training. Athens, GA (17 participants)</li> <li>Heifer Development Considerations for Long Term Productivity (March, 2025). In: Tifton Beef Cattle Short Course. Irwinville, GA (75 participants)</li> <li>Converting to a Controlled Breeding Season (February, 2025). In: Northeast Georgia Beef Cattle Short Course. Athens, GA (115 participants)</li> <li>Reproductive management considerations for beef herds (October, 2025). In: Master Cattlemen Program. Warren County, GA (37 participants)</li> <li>Reproductive management considerations for beef herds (February, 2025). In: Master Cattlemen Program. Sumpter County, GA (18 participants)</li> <li>Boosting Bull Reproductive Health (February, 2025). In: National Cattlemens Beef Association's CattleCon. In: San Antonio, Texas. (75 participants)</li> <li>Contributions of sire diet to pregnancy establishment in cattle (February, 2025). In: Cargill Brazil Beef Journal. Virtual. (35 participants)</li> <li>Reproductive management in beef cattle (January, 2025). In: Southeast GA Cattle Field Day. Effingham County (45 participants)</li> <li>Pregnancy diagnosis methods (January, 2025). In: Southeast GA Cattle Field Day. Effingham County (45 participants)</li> <li>Strategies to optimize fertility in the upcoming breeding season (January, 2025). In: UGA Winter Webinar Series. Virtual (30 participants).</li> <li>Beef cattle reproductive management considerations (Jan 2025). In: North Georgia Cattlemens Association. Canton, GA (40 participants)</li> <li>Using color Doppler ultrasonography to evaluate luteal function in embryo transfer programs (Jan 2025). In: TransOva Companywide PST Webinar. (30 participants)</li> <li>Understanding breeding soundness examination (Dec 2024). In: Bull Sale Eve. Calhoun, GA (45 participants)</li> <li>Beef Cattle Reproduction Considerations (December, 2024). In: Southwest Georgia Webinar. (15 participants) </li> <li>Basic Calving Considerations in Cow-Calf Herds (November, 2024). In: Meriwether Cattlemens. La Grange, GA (50 participants)</li> <li>Vedovatto, M. 2025. Growth promoting implants for grazing beef cattle. Farm Bureau Meeting, Alexandria, LA, Oct 18. Talk. 70 attendees.</li> <li>Ferreira, M. 2025. Pregnancy Management Strategies. Pregnancy Determination Clinic. Hill Farm Research Center, October 9th. 40</li> <li>Ferreira, M. 2025. Pregnancy Determination Clinic. Hill Farm Research Center, October 7th. 40</li> <li>Ferreira, M. 2025. Fly control management and demonstration. Northwest Region Beef and Forage Field Day. Hill Farm Research Center, April 24th. 90</li> <li>Vedovatto, M. 2025. Nutrition and reproduction of beef cattle. Artificial insemination school, Alexandria, LA, Oct 16. Talk. 40 attendees.</li> <li>Vedovatto, M. 2025. Maternal nutrition: impacts on cow-calf performance. Repronutri Annual Meeting – Brazil, Aug 29–30. 1040 attendees.</li> <li>Vedovatto, M. 2025. Implants for replacement heifers. Dean Lee Beef and Forage Field Day, Alexandria, LA, Sep 11. Talk. 60 attendees.</li> <li>Vedovatto, M. 2025. Mineral nutrition for beef cattle. Ranching Academy, Prineville, OR, Aug 16. Talk. 9 attendees.</li> <li>Vedovatto, M. 2025. Maternal chromium supplementation during late gestation alters the plasma metabolomic profile of Brangus beef calves. Annual Animal Science Society Meeting, Hollywood, FL, Jul 6–11. 60 attendees.</li> <li>Ferreira, M. Research and Extension programs on Heifer Development at LSU AgCenter. 79th Annual LCAAA Meeting, Marksville, LA Jun 04. Talk. 45 attendees</li> <li>Vedoatto, M. 2025. Implants for beef heifers. 79th Annual LCAAA Meeting, Marksville, LA, Jun 4. Talk. 45 attendees.</li> <li>Vedovatto, M. 2025. Implants for grazing cattle. Landry Parish Beef and Forage Field Day, Opelousas, LA, May 22. Talk. 55 attendees.</li> <li>Vedovatto, M. 2025. Beef cattle nutrition. Master Cattleman Program, Youngsville, LA, May 19. Talk. 40 attendees.</li> <li>Vedovatto, M. 2025. Beef cattle nutrition. Master Cattleman Program, Lake Charles, LA, May 15. Talk. 45 attendees.</li> <li>Vedovatto, M. 2025. Beef cattle nutrition. Master Cattleman Program, Alexandria, LA, Apr 14. Talk. 40 attendees.</li> <li>Ferreira, M. Nutritional Management, Artificial insemination Class, Hill Farm Research Station. April 4th. 30 attendees</li> <li>Vedovatto, M. 2025. Beef cattle nutrition. Master Cattleman Program, Winnsboro, LA, Mar 10. Talk. 30 attendees.</li> <li>Vedovatto, M. 2025. Update about beef cattle research at LSU. Louisiana Farm Bureau Meeting, Jeanerette, LA, Jan 17. Talk. 80 attendees.</li> <li>K. Harvey. 2025. Impact of temperament and stress on reproduction. University of Florida Beef Cattle Short Course – Gainesville, FL (05/08/2025).</li> <li>K. Harvey. 2025. Maternal behavior impacts cow productivity. Clay County Cattlemen’s Meeting – Houston, MS (05/15/2025)</li> <li>K. Harvey. 2024. Impact of temperament and stress on reproduction. Monroe County Cattlemen’s Meeting – Aberdeen, MS (11/21/2024).</li> <li>R. dos Reis. 2025. Nutrition and Management Strategies for Calving Success. In: Walthall Cattlemen Meeting- Tylertown, MS (2/27/2025).</li> <li>R. dos Reis. 2025. Bull Selection and Pre Breeding herd management. In: Clarke Cattlemen Meeting- Quitman, MS (10/06/2025).</li> <li>R. dos Reis. 2025. Nutrition and Management Strategies for Beef Cattle Systems. In: White Sand Field Day- Poplarville, MS (10/10/2025).</li> <li>R. dos Reis. 2025. Management Strategies for Beef Cattle Systems: Growth-Promoting Implants. Cattle Over Coffee Webinar – MSU Beef Extension Program (7/22/2025).</li> <li>Moriel, P. Seminar. Gut health: Unlocking cow-calf potential with probiotics. Ona highlight, University of Florida, Ona. September 9th, 2025. 30 attendees.</li> <li>Moriel, P. 2025. Probiotic supplementation for beef females – Annual Nutrition for Beef Females, May 29th, 2025, Seminole Tribe, FL. 15 attendees.</li> <li>Moriel, P. 2025. Probiotic supplementation for beef females – 2025 Ona Field Day – RCREC, April 17th, 2025, Ona, FL. 300 attendees.</li> <li>Moriel, P. Seminar. Heat stress in pregnant beef cows. Ona highlight, University of Florida, Ona. April 15th, 2025. 30 attendees.</li> <li>Moriel, P., P. Fontes, S. Johnson, K. Pohler, J. Hall, J. Dalton, M. Binelli, and S. Rosasco. 2025. Q&A – Preparing for the breeding season – Spring Webinar Series – April 15th, 2025. 60 attendees. XX YouTube Views.</li> <li>Moriel, P. 2025. Hydroxychloride supplementation for Bos indicus-influenced beef cattle. Selko-Trouw Nutrition R&D team. Feb. 25, 2025. Gainesville, FL. 10 attendees.</li> <li>Moriel, P. 2025. Using precalving nutrition and management to increase cow-calf production in the southeast US. 17th Annual Harvey Rubin Memorial Food Animal Veterinary Medicine Conference. Feb. 15, 2025. Newberry, FL. 40 attendees.</li> <li>Moriel, P. 2025. Early weaning – Cattlemen’s Roundtable. Feb. 12, 2025. Okeechobee, FL. 19 attendees.</li> <li>Moriel, P. Seminar. How fetal programming and early life feeding of Bacillus-based microbial solutions support cow-calf success. In: Novonesis Animal Health and Nutrition Webinar Series, September 10th 2025, Copenhagen, Denmark. 250 attendees.</li> <li>Moriel, P. 2025. Supplementation with probiotic and trace minerals and its impacts on cow-calf systems. In: 27th Novos Enfoques na Produção e Reprodução de Bovinos, March 21th, 2025, Uberlândia, Brazil [In Portuguese] 2,300 attendees</li> <li>Moriel, P. 2025. Heat stress and productivity in herds with Bos indicus influence. In: 27th Novos Enfoques na Produção e Reprodução de Bovinos, March 20th, 2025, Uberlândia, Brazil [In Portuguese] 2,300 attendees</li> <li>Moriel, P. 2025. Hydroxychloride supplementation in Nelore cattle. In: Selko/Trouw preconference, March 19th, 2025, Uberlândia, Brazil [In Portuguese] 60 attendees</li> <li>Moriel, P. Webinar. Fetal Programming and calf performance. In: International Beef Academy Webinar Series, January 2025, College Station, TX. 10 students.</li> <li>Moriel, P. Webinar. Metabolic Imprinting and calf performance. In: International Beef Academy Webinar Series, January 2025, College Station, TX. 10 students.</li> <li>Moriel, P. Webinar. Post-weaning heifer development. In: International Beef Academy Webinar Series, January 2025, College Station, TX. 10 students.</li> </ol>

Impact Statements

1. Young bull overnutrition negatively impacted semen quality, indicating that diet-induced over conditioning in young bulls resulted in subtle decreases key sperm functional traits
2. Feeding a high-gain diet to young bulls results in semen that delays embryonic development and decreases embryo quality.
3. Embryo recipients that express estrus and have greater luteal blood perfusion have greater pregnancy rates to fixed-time embryo transfer
4. Cows that receive false positive results during early resynchronization have delayed calving events in the subsequent calving season.
5. Deep Learning algorithms applied to CD ultrasonography can reliably predict pregnancy status earlier than industry-standard methods, with performance comparable to skilled technician
6. Delayed calving in late embryonic and early fetal mortality cows resulted in reduced weaning weights and suboptimal fertility in the following year.
7. Chromium supplementation during the precondition phase increase weight, immune system and affects the rumen fermentation of beef calves.
8. Chromium supplementation during late gestation of beef cows affects performance, immune system and gene expression on the offspring
9. Administering an injectable trace mineral solution to stressed beef cattle does not increase average daily gain, except within specific production circumstances
10. Maternal aggression at the time of calving impacts beef cattle productivity
11. Elevated parasite load in beef cattle during gestation negatively impacts cow and offspring productivity.
12. Growth-promoting implants and injectable trace mineral are tools to improve performance, and immune system of beef cattle reared in subtropical and tropical environments.
13. Chromium supplementation during the finishing phase of beef steers enhances growth performance under heat stress conditions
14. Narasin supplementation in grazing cattle improves growth performance, supporting its use as a cost-effective nutritional strategy.
15. Microbial solutions such as probiotics and direct-fed microbials show promise in enhancing feed efficiency and productivity in beef and dairy systems.
16. Maternal injectable minerals positively influence calf growth and reproductive traits, suggesting benefits of targeted prenatal supplementation
17. Bacillus-based direct-fed microbials improve nutrient digestibility and rumen fermentation in forage-fed cattle, enhancing gut health and feed utilization
18. Omega-3 supplementation to late-gestation heifers enhances offspring physiology and performance, supporting prenatal nutritional interventions
19. Trace mineral sources and supplementation during gestation influence cow and calf productivity, emphasizing the importance of mineral form in prenatal nutrition
20. Providing shade to pregnant heifers altered glutamate metabolism and appeared to reduce fat mobilization.
21. Calves from shaded heifers showed metabolic and stress-adaptation advantages before vaccination, though these differences disappeared after vaccination
22. Year-round Bacillus-based DFM improved cow condition, enhanced calf growth, and sustained long-term immune and carcass quality advantages
23. A new guineagrass genotype was selected and identified and will be released as a new cultivar
24. Stocking method does not affect animal performance and vegetation characteristics but change the proportion of pasture area explored by cattle.
25. Heat stress strongly influences reproductive success in Bos indicus cattle and that genomic tools can improve the prediction of animals’ resilience to thermal stress
26. Reveal genomic patterns of homozygosity in Brahman cattle, providing insight into inbreeding levels and population structure